B3817 [语言月赛 202308] 小粉兔还会忘记考试吗

求求巨佬，哪里错了？？？

#include <bits/stdc++.h>

using namespace std;

int n, m, p, s, a[5010], f[5010], ans, num;

int main() {
  cin >> n >> m;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  memset(f, -0x3f, sizeof(f));
  for (int j = 0; j < m; j++) {
    cin >> p >> s;
    for (int j = 0; j < n; j++) {
      if (p == a[j]) {
        f[j] = s;
      }
    }
  }
  for (int i = 0; i < n; i++) {
    if (f[i] == -0x3f) {
      num++;
    } else if (f[i] < 60) {
      ans++;
    }
  }
  cout << num << '\n' << ans;
}