Submission #247881

#	Time	Username	Problem	Language	Result	Execution time	Memory
247881		kartel	Hindeks (COCI17_hindeks)	C++14	50 / 50	103 ms	3704 KiB

hindeks

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +500500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
//#define el endl
#define pii pair <int, int>
#define err ld(1e-9)
#define last(x) x.back()
#define all(x) (x).begin(), (x).end()
#define arr_all(x, n) (x + 1), (x + 1 + n)
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

int n, i, a[N], j, h;

int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
//
//    in("input.txt");
//    out("output.txt");

    cin >> n;
    for (i = 1; i <= n; i++) cin >> a[i];

    sort(a + 1, a + 1 + n);

    i = 1;
    while (i <= n)
    {
        h = min(n - i + 1, a[i]);

        if (h == n - i + 1)
            break;

        j = i + 1;
        while (j <= n && a[j] == a[i]) j++;

        i = j;
    }
    cout << h;
}
//
//00000
//00110
//00111
//00011
//00000

• Subtask 1: 50 / 50