oj.uz

답안 #897679

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
897679 2024-01-03T14:36:33 Z mihtriii295 Hindeks (COCI17_hindeks) C++17
50 / 50
 68 ms 5540 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O2")
#define ll  long long
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define el  cout << '\n' 

using namespace std;

const ll N = 5e5 + 1;
const ll logN = 20;
const ll MOD = 1e9 + 7;

int n, a[N], res, d;
int main(){
    if(fopen("coci1617_r6_hindeks.inp", "r")){
        freopen("coci1617_r6_hindeks.inp", "r", stdin);
        freopen("coci1617_r6_hindeks.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0); cin.tie(NULL);
    cout.tie(NULL);
    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> a[i];
    sort(a + 1, a + 1 + n, greater<int>());
    int i = 1;
    while (i <= n && a[i] >= i)
        ++i;
    cout << i - 1;
    return 0;
}

Compilation message

hindeks.cpp: In function 'int main()':
hindeks.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen("coci1617_r6_hindeks.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hindeks.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen("coci1617_r6_hindeks.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 12 ms 1372 KB Output is correct
9 Correct 68 ms 5540 KB Output is correct
10 Correct 36 ms 2896 KB Output is correct