Submission #236276

#	Time	Username	Problem	Language	Result	Execution time	Memory
236276		eulerdesoja	Kronican (COCI16_kronican)	C++14	100 / 100	1612 ms	16888 KiB

kronican

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define sz(x) (int)x.size()
#define int long long
typedef pair<int,int>pii;
const int mxN=21,M=1e9+7;
//did u check when n=1?
//is mxN correct?
int n,k,tot;
int tab[mxN][mxN];
int dp[1<<mxN];
int solve(int mask){
    if(dp[mask]!=-1)return dp[mask];
    if(__builtin_popcount(mask)<=k) return dp[mask]=0;
    int ans=M;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(!(mask & (1<<i))||!(mask & (1<<j)))continue;
            if(i==j)continue;
            ans=min(ans,solve(mask^(1<<i))+tab[i][j]);
        }
    }
    return dp[mask]=ans;
}
int32_t main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    memset(dp,-1,sizeof(dp));
    cin>>n>>k;
    tot=(1<<n)-1;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cin>>tab[i][j];
        }
    }
    cout<<solve(tot);
}

• Subtask 1: 100 / 100