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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. long long c[105][105],vt[100000],n,tt=INT_MAX,s=0,d[100000];
  4. void hv(long long i)
  5. {
  6.   for (long long j=1;j<=n;j++)
  7.   {
  8.         if (d[j]==0)
  9.         {
  10.             vt[i]=j;
  11.             d[j]=1;
  12.             s+=c[vt[i]][vt[i-1]];
  13.         if (i==n)
  14.                 tt=min(tt,s+c[vt[i]][1]);
  15.         else
  16.             hv(i+1);
  17.         d[j]=0;
  18.         s-=c[vt[i]][vt[i-1]];
  19.         }
  20.       }
  21. }
  22.  
  23. int main() {
  24.     freopen("banhang.inp","r",stdin);
  25.     freopen("banhang.out","w",stdout);
  26.     cin>>n;
  27.     for (long long i=1;i<=n;++i)
  28.         for (long long j=1;j<=n;j++)
  29.             cin>>c[i][j];
  30.     vt[1]=1;
  31.     d[1]=1;
  32.     hv(2);
  33.     cout<<tt;
  34.    return 0;}
  35.  
Success #stdin #stdout 0s 5276KB
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https://ideone.com/MB5etk
bán hàng
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

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