Submission #706568

#	Time	Username	Problem	Language	Result	Execution time	Memory
706568		YugiHacker	Kronican (COCI16_kronican)	C++14	100 / 100	488 ms	4504 KiB

kronican

#include<bits/stdc++.h>
#define el cout<<"\n"
#define f0(i,n) for(int i=0;i<n;++i)
#define f1(i,n) for(int i=1;i<=n;++i)
#define maxn
#define bit(n,i) ((n>>i)&1)
using namespace std;
int n, k, f[1<<22];
int c[22][22];
main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> k;
    f0 (i, n) f0 (j, n) cin >> c[i][j];
    int ans = 1e9;
    for (int x=(1<<n)-1; x; x--)
    {
        if (x!= (1<<n)-1) f[x] = 1e9;
        if (__builtin_popcount(x) < k) continue;
        f0 (i, n) if (bit(x, i))
        {
            f0 (j, n) if (!bit(x, j))
                f[x] = min(f[x], f[x+(1<<j)] + c[j][i]);
        }
        if (__builtin_popcount(x) == k) ans = min(ans, f[x]);
    }
    cout << ans;
}

Compilation message (stderr)

kronican.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   10 | main()
      | ^~~~

• Subtask 1: 100 / 100