oj.uz

답안 #86428

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
86428 2018-11-26T09:50:14 Z qwerty12345 Hindeks (COCI17_hindeks) C++14
30 / 50
 108 ms 2528 KB 
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#include <bits/stdc++.h>

#define for0(i , v) for (int i = 0 ; i < v.size() ; i++)
#define for1(i , n) for (int i = 1 ; i <= n ; i++)
#define AIDS ios_base::sync_with_stdio(0)
#define pb push_back
#define pp pop_back
#define sz(a) a.size()
#define all(x) x.begin() , x.end()
#define F first
#define S second
#define mp make_pair
#define ld long double
#define ll long long
#define pii pair<int, int>
#define in insert

const int N = 1e6 + 3;
const ll INF = 1e18 + 100;
const int inf = 1e9 + 123;
const int MOD = 1e9 + 7;
const int dx[] = {0 , 1 , 0 , -1 , 0};
const int dy[] = {0 , 0 , 1 , 0 , -1};
const char dd[] = {' ' , 'D' , 'R' , 'U' , 'L'};

using namespace std;
         
int a[N];

main () {
//  freopen("glasses.in", "r", stdin);
//  freopen("output.out", "w", stdout);
	AIDS;
	int n;
	cin >> n;
	for (int i = 1 ; i <= n ; i++) {
		cin >> a[i];
	}
	int l = 0;
	int r = n + 1;
	while (l < r) {
		int mid = (l + r) / 2;
		int cnt = 0;
		for (int i = 1 ; i <= n ; i++) {
			if (a[i] >= mid) {
				cnt++;
			}
		}
		if (cnt > mid) {
			l = mid + 1;
		}
		else {
			r = mid;
		}
	}
	int cnt = 0;
	for (int i = 1 ; i <= n ; i++) {
		if (a[i] >= l) {
			cnt++;
		}
	}
	if (cnt == l)
		cout << l;
	else {
		cout << 0;
	}	
}

Compilation message

hindeks.cpp:59:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^

Subtask #1
30.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Incorrect 2 ms 504 KB Output isn't correct
4 Incorrect 2 ms 512 KB Output isn't correct
5 Correct 2 ms 568 KB Output is correct
6 Incorrect 2 ms 588 KB Output isn't correct
7 Correct 3 ms 588 KB Output is correct
8 Correct 24 ms 992 KB Output is correct
9 Incorrect 108 ms 2528 KB Output isn't correct
10 Correct 34 ms 2528 KB Output is correct