#include <iostream>
#define ll long long
using namespace std;

int quadri(int N, long long M, int V[]) {
    int currAns = N+1;
    ll currSum = V[0];
    int c1, c2;
    c1 = c2 = 0;
    // window qualcosa
    while (c2 < N) {
        if (currSum > M) {
            currAns = min(currAns, c2-c1+1);
            currSum -= V[c1];
            c1++;
        }
        if (currSum <= M) {
            c2++;
            if (c2 < N) currSum += V[c2];
        }
    }

    return currAns-1;
}