//author: Ahmet Alp Orakci
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define ONLINE_JUDGE
void solve() {
int n;
cin >> n;
vector <int> vec(n +1);
for(int i = 1; i <= n; i++) {
cin >> vec[i];
}
sort(vec.begin(), vec.end());
for(int i = int(1E6); i >= 0; i--) {
auto it = lower_bound(vec.begin(), vec.end(), i);
int cnt = vec.end() - it;
if(cnt >= i) {
cout << i;
return;
}
}
return;
}
signed main() {
#ifndef ONLINE_JUDGE
freopen(".in", "r", stdin);
freopen(".out", "w", stdout);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int t = 1; //cin >> t;
for(int i = 1; i <= t; i++) {
solve();
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
348 KB |
Output is correct |
2 |
Correct |
2 ms |
348 KB |
Output is correct |
3 |
Correct |
3 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
348 KB |
Output is correct |
5 |
Correct |
6 ms |
452 KB |
Output is correct |
6 |
Correct |
7 ms |
348 KB |
Output is correct |
7 |
Correct |
12 ms |
348 KB |
Output is correct |
8 |
Correct |
27 ms |
856 KB |
Output is correct |
9 |
Correct |
83 ms |
2392 KB |
Output is correct |
10 |
Correct |
43 ms |
1372 KB |
Output is correct |