/******************************************************************************

Welcome to GDB Online.
  GDB online is an online compiler and debugger tool for C, C++, Python, PHP, Ruby,
  C#, OCaml, VB, Perl, Swift, Prolog, Javascript, Pascal, COBOL, HTML, CSS, JS
  Code, Compile, Run and Debug online from anywhere in world.

*******************************************************************************/
#include <bits/stdc++.h>
using namespace std;
int quadri(int N, long long M, int V[]){
	long long j=0,somma=0, ans = N;
	for(int i=0; i<N; i++) {

		if (V[i] > M) {return 0;}
		if(somma+V[i] <= M) {
			somma+=V[i];
			continue;
		}
		somma+=V[i];
		while(somma > M) {
			somma-=V[j];
			j++;
		}
		ans = min(ans, i-j+1);
	}
	

	return ans;
}



/*

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>

static FILE *fr, *fw;

// Declaring variables
static int N;
static long long M;
static int* V;
static int B;

// Declaring functions
int quadri(int N, long long M, int* V);

int main() {
	fr = stdin;
	fw = stdout;

	// Iterators used in for loops
	int i0;

	// Reading input
	fscanf(fr, "%d %lld", &N, &M);
	V = (int*)malloc(N * sizeof(int));
	for (i0 = 0; i0 < N; i0++) {
	    fscanf(fr, "%d", &V[i0]);
	}

	// Calling functions
	B = quadri(N, M, V);

	// Writing output
	fprintf(fw, "%d\n", B);
	
	fclose(fr);
	fclose(fw);
	return 0;
}

*/