wa声一片

求调

#include <bits/stdc++.h>
using namespace std;
long long n, s, a, b, x[1001], y[1001], sg, n1[1001], m = 99999999999, c;

int main() {
    cin >> n >> s >> a >> b;
    sg = a + b;
    for (int i = 1; i <= n; i++) {
        cin >> x[i] >> y[i];
        if (x[i] < sg) {
            n1[i] = y[i];
        }
    }
    for (int j = 1; j <= n; j++) {
        for (int i = 1; i <= n; i++) {
            if (n1[i] < m && s > n1[i]) {
                m = n1[i];
                s = s - n1[i];
                c++;
                n1[i] = 1000000000009;
                m = 99999999999;

            }
        }
    }
    cout << c;
    return 0;
}