Problem:
Score : 200 points

Problem Statement

A ball will bounce along a number line, making N + 1 bounces. It will make the first bounce at coordinate D_1 = 0, and the i-th bounce (2 \leq i \leq N+1) at coordinate D_i = D_{i-1} + L_{i-1}.

How many times will the ball make a bounce where the coordinate is at most X?

Constraints

1 \leq N \leq 100

1 \leq L_i \leq 100

1 \leq X \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N X
L_1 L_2 ... L_{N-1} L_N

Output

Print the number of times the ball will make a bounce where the coordinate is at most X.

Sample Input 1

3 6
3 4 5

Sample Output 1

2

The ball will make a bounce at the coordinates 0, 3, 7 and 12, among which two are less than or equal to 6.

Sample Input 2

4 9
3 3 3 3

Sample Output 2

4

The ball will make a bounce at the coordinates 0, 3, 6, 9 and 12, among which four are less than or equal to 9.

Solution in C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <bits/stdc++.h>

int gcd(int a, int b);
int gcd(const std::vector<int>& arr);

int main() {

        int n, x;
        std::cin >> n >> x;
        int l = 0;
        int max_v = 0;
        for (std::size_t i = 0; i < n; ++i) {
                int v = 0;
                std::cin >> v;

                if (l <= x) {
                        max_v = i + 1;
                }
                l += v;
        }

        std::cout << max_v << std::endl;

        return 0;
}

int gcd(int a, int b) {
        if (a > b) {
                std::swap(a, b);
        }

        for (int r = b % a; r != 0; b = a, a = r, r = b % a)
                ;

        return a;
}

int gcd(const std::vector<int>& arr) {
        const int size = arr.size();
        if (size == 0) {
                return 0;
        }
        else if (size == 1) {
                return arr[0];
        }

        int ret = gcd(arr[0], arr[1]);

        for (std::size_t i = 2; i < size && ret != 1; ++i) {
                ret = gcd(arr[i], ret);
        }

        return ret;
}