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 <iostream>
using namespace std;
typedef long long int ll;
const int MAXN = 2e5;
ll A[MAXN];
int main() {	
	ll N, K, ans = 0, sum = 0;
	cin >> N >> K;
	for (int i = 0; i < N; i++)
		cin >> A[i];
	for (int i = 0, j = 0; i < N; i++) {
		while (j < N && sum < K) {
			sum += A[j];
			j++;
		}
		if (sum < K) break;
		ans += N + 1 - j;
		sum -= A[i];
	}
	cout << ans << endl;
	return 0;
}