Submission #900421

#TimeUsernameProblemLanguageResultExecution timeMemory
900421n3rm1nKarte (COCI18_karte)C++17
12 / 120
1084 ms10368 KiB
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 5e5 + 10;
void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}
int n, k;
int a[MAXN];
void read()
{
    cin >> n >> k;
    for (int i = 1; i <= n; ++ i)
        cin >> a[i];
}
int p[MAXN], used[MAXN];
void check()
{
    int cnt_false = 0;
    for (int i = 1; i <= n; ++ i)
    {
        if(cnt_false < p[i])
        {
            cnt_false ++;
        }
    }
    if(cnt_false == k)
    {
        for (int i = n; i >= 1; -- i)
            cout << p[i] << " ";
        cout << endl;
        exit(0);
    }
}
void gen(int pos)
{
    if(pos > n)
    {
        check();
        return;
    }
    for (int i = 1; i <= n; ++ i)
    {
        if(!used[i])
        {
            used[i] = 1;
            p[pos] = a[i];
            gen(pos+1);
            used[i] = 0;
        }
    }
}
int main()
{
    speed();

    read();
    gen(1);
    cout << -1 << endl;
    return 0;
}
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