练60.1 丢失的数字

1
周轩平 LV 4 @ 2025-7-13 15:22:50

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

int main() { int n, m, a[100005], x; cin >> n >> m; for (int i = 1; i <= n; i++) { cin >> x; a[x]++; } for (int j = 1; j <= n; j++) { if (a[j] == 0) { cout << j << endl; } } return 0; }
0
王梓汀 LV 4 @ 2025-7-13 15:23:20
#include <bits/stdc++.h> using namespace std;

int main() { int n, m, a[100005], x; cin >> n >> m; for (int i = 1; i <= n; i++) { cin >> x; a[x]++; } for (int j = 1; j <= n; j++) { if (a[j] == 0) cout << j << endl; }
```
return 0;
```
}