Submission #247893

#	Time	Username	Problem	Language	Result	Execution time	Memory
247893		NONAME	Hindeks (COCI17_hindeks)	C++14	50 / 50	104 ms	2468 KiB

hindeks

#include <bits/stdc++.h>
#define dbg(x) cerr << #x << " = " << x << "\n"
#define fast_io ios_base::sync_with_stdio(0); cin.tie(0); cout.tie()
using namespace std;
using ll = long long;

int n, a[int(5e5) + 100];

int main() {
    fast_io;

    cin >> n;
    for (int i = 0; i < n; ++i)
        cin >> a[i];

    sort(a, a + n);
    reverse(a, a + n);
    int p = -1;
    for (int i = 0; i < n; ++i)
        if (a[i] >= i + 1)
            p = i;
    cout << p + 1 << "\n";
}

• Subtask 1: 50 / 50