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        "ocr_text": "Romeo ha di recente assistito ad un’avvincente performance di un cuoco acrobatico, che gestiva una\nimponente grigliata di braciole ribaltandole a gruppi di tre per mezzo di una apposita paletta, Questo\nevento gli ha ispirato l’idea del paletta-sort, una nuova interessante procedura di ordinamento.\nDato un vettore V contenente gli interi da 0 a N   —1 (indicizzato da 0 a N  —1), l’unica operazione ammessa\nnel paletta-sort è l’operazione ribalta. Questa operazione sostituisce tre elementi A, B, C' consecutivi di\nY con i corrispondenti ribaltati C', B, A. Aiuta Romeo a capire se è possibile ordinare il vettore V, e in\ncaso affermativo quante e quali operazioni ribalta sono sufficienti!\nImplementazione      I\nDovrai sottoporre esattamente un file con estensione .cpp.\n    US Tra gli  allegati  a questo task  troverai  un  template  (paletta.cpp)  con  un  esempio di\n        implementazione.\nDovrai implementare la seguente funzione:\n   H Funzione paletta_sort\n       C++ | long long paletta_sort(int N,  int V[]);\n           L’intero N rappresenta il numero di elementi da ordinare.\n        — II vettore V, indicizzato da 0 a N — 1, contiene la sequenza da ordinare.\n        — La funzione dovra restituire il numero ribaltamenti effettuati per ordinare V, oppure —1 se non\n           ¢’ modo di ordinare il vettore.\nIl grader chiamera la funzione paletta_sort e ne stampera il valore restituito sul file di ontput.\nGrader di prova\nNella directory relativa a questo problema è presente una versione semplificata del grader usato durante\nla correzione, che potete usare per testare le vostre soluzioni in locale. 11 grader di esempio legge i dati di\ninput dal file input. txt, chiama le funzioni che dovete implementare e scrive il file output. txt, secondo\nil seguente formato.\n1l file input.txt è composto da due righe, contenenti:\n   «  Riga 1: I'unico intero N.\n   e  Riga 2: ivalori V[i] per i =0,..., N — 1.\n1l file output.txt & composto da una riga, contenente:\n   C  eewn 12 N e llawn D wanndidentétn 2alla Lot ncen maT ot drs  o n ek"
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        "ocr_text": "|  0\n            . 1\n                  2"
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        "box_2d": [
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "|  0\n            . 1\n                  2"
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
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        "panel_type": "side_panel_body",
        "box_2d": [
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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          861,
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        "panel_type": "browser_viewport",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": null
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        "panel_type": "browser_viewport",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "box_2d": [
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        "panel_type": "browser_viewport",
        "box_2d": [
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      },
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        "box_2d": [
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        "ocr_text": null
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
      },
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      },
      {
        "panel_type": "side_panel_body",
        "box_2d": [
          198,
          212,
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        "ocr_text": null
      },
      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
      {
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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      {
        "panel_type": "side_panel_body",
        "box_2d": [
          198,
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        "ocr_text": null
      },
      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
      {
        "panel_type": "side_panel_body",
        "box_2d": [
          861,
          212,
          1000,
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        "ocr_text": null
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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      {
        "panel_type": "side_panel_body",
        "box_2d": [
          198,
          212,
          334,
          1000
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
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        "panel_type": "side_panel_body",
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        "ocr_text": null
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "panel_type": "side_panel_body",
        "box_2d": [
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          212,
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          1000
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
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        "panel_type": "side_panel_body",
        "box_2d": [
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          212,
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "panel_type": "side_panel_body",
        "box_2d": [
          198,
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          1000
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
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        "panel_type": "side_panel_body",
        "box_2d": [
          861,
          212,
          1000,
          1000
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        "ocr_text": null
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "panel_type": "browser_viewport",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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      {
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        "box_2d": [
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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      {
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        "ocr_text": null
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "box_2d": [
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        "ocr_text": null
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "box_2d": [
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
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      },
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        "box_2d": [
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          1000,
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        "ocr_text": null
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        "panel_type": "browser_viewport",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "box_2d": [
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "box_2d": [
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        "ocr_text": null
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "panel_type": "side_panel_body",
        "box_2d": [
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        "ocr_text": null
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
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      },
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        "panel_type": "side_panel_body",
        "box_2d": [
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          212,
          1000,
          1000
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        "ocr_text": null
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "panel_type": "browser_viewport",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": null
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "box_2d": [
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        "ocr_text": null
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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          861,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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            "url_or_domain": "e    2>    GC     25  volterra.olinfo.it/cms/tasks/paletta/statements/it/paletta.it.pdf      DE Modalità Lettura  - 3     RA     A  Scuola     :"
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        "ocr_text": "= _ paletta.it.pdf      212     -   100%   +     B  &    Tr  %    ¢      &   L   0   i"
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        "panel_type": "side_panel_body",
        "box_2d": [
          198,
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        "ocr_text": null
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      {
        "panel_type": "browser_viewport",
        "box_2d": [
          334,
          212,
          861,
          1000
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n                                I\n 5      -1\n 20431\n 6      3\n 230641\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
      },
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        "panel_type": "side_panel_body",
        "box_2d": [
          861,
          212,
          1000,
          1000
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        "ocr_text": null
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    "frame_path": "volterra1-ioi2027/oii-check-data/zama/bb13f650dbb14e8aac650988f04d4360/1794147920.745.jpg",
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.      X\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.      X\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.      X\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.      X\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
        "box_2d": [
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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          861,
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        "ocr_text": "   =  Sublasl      l“l'l 1:  Last ¢ esempio.\n   «  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non ¢ ordinabile).\n   .  Subtask 5  [25 punti]: N < 100 000.      X\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t\n                                [2[5[0[1]4]5]\n                                KESI\n                                0]1/2|3]4/5"
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        "panel_type": "browser_viewport",
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        "panel_type": "browser_viewport",
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        "panel_type": "browser_viewport",
        "box_2d": [
          334,
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          861,
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        "ocr_text": "la correzione, che potete usare per testare le vostre soluzioni in locale. Il grader di esempio legge i dati di\ninpul dal file input.txt, chiama le funzioni che dovete implementare e scrive il file output. txt, secondo\nil seguente formato.\nIl file input.txt & composto da due righe, contenenti:\n   »  Riga l: 'unico intero N.\n   »  Riga 2: i valori V[{] per2=0,..., N - 1.\nIl file output.txt & composto da una riga, contenente:\n   =  Riga l: il valore R restituito dalla funzione paletta_sort.\nAssunzioni\n   o  1< N < 1500000,\n   .  0Vl <N —lperognii=0,...,N~1\n paletta      Pagina 1 di 2"
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        "ocr_text": "      gnazione      punteggi\nIl tuo programma verrà testato su diversi test case raggruppati in subtask. Per ogni test case riceverai\npunteggio:\n   «  1: se riporti correttamente il numero minimo di ribaltamenti:\n   *  0.2:  se il vettore V & ordinabile e restituisci un numero maggiore o uguale a 0 (anche se non\n      corrisponde al numero minimo di ribaltamenti), cioé riesci  a distinguere guando il vettore è\n      ordinabile;\n   o  0: altrimenti.\nPer ogni subtask riceverai un punteggio pari al valore del subtask moltiplicato per il peggior punteggio\nottenuto su uno dei suoi test case.\n   -  Subtask 1  [ 5 punti]: Casi d’esempio.\n   .  Subtask 2  [19 punti]: N < 100.\n   »  Subtask 3  [24 punti]: N < 5000.\n   .  Subtask 4  [21 punti]: N < 100000 ¢ R < 100 (oppure V non è ordinabile).\n   «  Subtask 5  [25 punti]: N < 100000.\n   .  Subtask 6  [ 6 punti]: Nessuna limitazione specifica.\n                               k\nEsempi di input/output\n 5      -1\n 20431\n                                3\nSpiegazione\nNel primo caso di esempio, non è possibile ordinare il vettore dato.\nNel secondo caso di esempio, la soluzione proposta produce la seguente sequenza di ribaltamenti:\n                                [2]3]0]5 4]t"
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