제출 #856058

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
856058		vjudge1	Hindeks (COCI17_hindeks)	C++17	50 / 50	39 ms	15444 KiB

hindeks

#include <bits/stdc++.h>
using namespace std;
#define sp << " " << 
#define int long long
#define vi vector<int>
#define pb push_back
#define F(xxx,yyy) for (int xxx=1;xxx<=yyy;xxx++)
#define pii pair<int,int>
#define all(x) x.begin()+1,x.end()
const int N = 4e5+1;


void solve() {
	int n;
	cin >> n;
	vi a(n+1),mp(1000001,0);
	F(i,n) cin >> a[i];
	F(i,n) mp[a[i]]++;
	for (int i=1000000-1;i>=1;i--) mp[i]+=mp[i+1];
	int ans = 0;
	for (int i=1;i<=1000000;i++) if (mp[i] >= i) ans = i;
	cout << ans << endl;
}     	
                 
                 
                 
                 
                 
                 
                 
                 
                                
signed main() { 
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t; 
    while (t --> 0) solve();
}

• Subtask 1: 50 / 50