A_Robin_Helps.cpp

#include <bits/stdc++.h>
using namespace std;

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t;
    cin >> t;
    while (t--)
    {
        int n, k;
        cin >> n >> k;
        vector<int> a(n);
        for (int i = 0; i < n; i++) {
            cin >> a[i];
        }
        int cnt = 0, gold = 0;
        for (int i = 0; i < n; i++) {
            if (a[i] >= k) {
                gold += a[i];
            } else if (a[i] == 0) {
                if (gold > 0) {
                    gold--;
                    cnt++;
                }
            }
        }
        cout << cnt << "\n";
    }
    return 0;
}