Submission #1178870

#	Time	Username	Problem	Language	Result	Execution time	Memory
1178870		prideliqueee	Kronican (COCI16_kronican)	C++20	100 / 100	649 ms	8620 KiB

kronican

#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int n,k;
    cin>>n>>k;
    int a[n][n];
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<n;j++)
        cin>>a[i][j];
    }
    int sz=pow(2,n);
    int dp[sz];
    memset(dp,127,sizeof dp);
    dp[sz-1]=0;
    int ans=LLONG_MAX;
    for(int i=sz-1;i>=0;i--)
    {
        if(__builtin_popcount(i)==k)
        ans=min(ans,dp[i]);
        for(int j=0;j<n;j++)
        {
            if((i&(1<<j)))
            {
                int mn=LLONG_MAX;
                for(int l=0;l<n;l++)
                {
                    if(((i&(1<<l)))&&l!=j)
                    {
                        mn=min(mn,a[j][l]);
                    }
                }
                dp[i&(~(1<<j))]=min(dp[i&(~(1<<j))],mn+dp[i]);
                //cout<<i<<" "<<(i&(~(1<<j)))<<" "<<mn<<" "<<endl;
            }
        }
    }
    //for(int i=0;i<sz;i++)
    //cout<<dp[i]<<" ";
    
    //cout<<(7&(1<<1));
    cout<<ans;
}

• Subtask 1: 100 / 100