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Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 2593 Accepted Submission(s): 1512

#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
using namespace std;
int n,m,k,link[110],mark[110],g[110][110];
int x[110],y[110],sum,ans;
bool dfs(int t)
{
for(int i=1;i<=m;i++)
{
if(mark[i]==-1&&g[t][i])
{
mark[i]=1;
if(link[i]==-1||dfs(link[i]))
{
link[i]=t;
return true;
}
}
}
return false;
}
int main()
{
int cas=1;
while(scanf("%d%d%d",&n,&m,&k)!=EOF)
{
sum=0,ans=0;
memset(g,0,sizeof(g));
memset(link,-1,sizeof(link));
for(int i=1;i<=k;i++)
{
scanf("%d%d",&x[i],&y[i]);
g[x[i]][y[i]]=1;
}
for(int i=1;i<=n;i++)
{
memset(mark,-1,sizeof(mark));
if(dfs(i))
sum++;
}
for(int i=1;i<=k;i++)
{
g[x[i]][y[i]]=0;
int ret=0;
memset(link,-1,sizeof(link));
for(int i=1;i<=n;i++)
{
memset(mark,-1,sizeof(mark));
if(dfs(i))
ret++;
}
if(ret<sum)
ans++;
g[x[i]][y[i]]=1;
}
printf("Board %d have %d important blanks for %d chessmen.\n",cas,ans,sum);
cas++;
}
return 0;
}
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原文地址:http://www.cnblogs.com/a972290869/p/4248630.html