示例#1
0
文件: MATCH2.cpp 项目: eddrda/cpp
int main() {
  //assert(freopen("input.txt", "r", stdin));
  //assert(freopen("output.txt", "w", stdout));
  //std::ios::sync_with_stdio(0);
  //std::cin.tie(0);
  int n;
  scanf("%d", &n);
  int src = 0;
  int dst = n + n + 1;
  for (int i = 1; i <= n; ++i) {
    add(src, i, 0, 1);
    add(i + n, dst, 0, 1);
  }
  for (int u, v, c; ~scanf("%d %d %d", &u, &v, &c); ) {
    add(u, v + n, c, 1);
  }  
  int fcost = min_cost_max_flow(src, dst);
  printf("%d\n", fcost);
  for (int i = 1; i <= n; ++i) {
    int v = 0;
    for (int j = 0; j < int(ed[i].size()) && !v; ++j) {
      edge& e = ed[i][j];
      if (n + 1 <= e.to && e.to <= n + n) {
        if (e.f) {
          v = e.to - n;
        }
      }
    }
    printf("%d %d\n", i, v);
  }
}
int main()
{

#ifndef ONLINE_JUDGE
    freopen("in.txt","r",stdin);
#endif
    int t;
    scanf("%d",&t);
    while(t--)
    {

        scanf("%d %d %d\n",&n,&k,&m);
        memset(num,0,sizeof(num));
        memset(mat,0,sizeof(mat));

        for(int i=0;i<n;i++)
        {
            char c[3];
            scanf("%s",c);
            ans[i]=c[0]-'A';
        }
        for(int i=0;i<60;i++)
            for(int j=0;j<60;j++)
                cost[i][j]=inf;

        for(int i=0;i<m;i++)
        {
            memset(num,0,sizeof(num));
            memset(mat,0,sizeof(mat));

            for(int i=0;i<60;i++)
                for(int j=0;j<60;j++)
                cost[i][j]=inf;

            for(int j=0;j<n;j++)
            {
                char c[3];
                scanf("%s",c);
//                puts(c);
                int x=c[0]-'A';
                hash[ans[j]][num[ans[j]]++]=x;
            }


            for(int j=0;j<26;j++)        //change j to k
            {
                for(int k=0;k<26;k++)
                {
                    int tmp=0;
                    for(int l=0;l<num[j];l++)
                    {
                        if(hash[j][l]!=k)
                            tmp++;
                    }
                    if(num[j])
                    {
                        mat[j][k+26]=1;
                        cost[j][k+26]=tmp;
                    }
                }
            }
            for(int j=0;j<26;j++)
            {
                mat[55][j]=1;
                cost[55][j]=0;
                mat[j+26][56]=1;
                cost[j+26][56]=0;
            }
            int t;
            min_cost_max_flow(60,mat,cost,55,56,flow,t);
            printf("%.4f\n",double(n-t)/double(n));
        }

    }
    return 0;
}