pku2492 A Bug's Life

题目意思：一夫一妻制，呵呵。赤裸裸的并查集。

<code>

#include<stdio.h>
#include<string.h>
#include<iostream>
using namespace std;
#define maxs 2000
#define maxn 4005
int father[maxn];
void Make_Set()
{
for(int i=1;i<=maxn;i++)
father[i]=i;
}
int Find_Set(int x)//²éÕÒÒ»¸öÔªËØËùÔÚ¼¯ºÏ
{
if(x!=father[x])
{
father[x]=Find_Set(father[x]);//µÝ¹é²éÕÒ
}
return father[x];
}

void Union(int x,int y)
{
x=Find_Set(x),y=Find_Set(y);
if(x<y)
father[y]=x;
else if(x>y)
father[x]=y;
}
int main()
{
int T,n,m,i,j;
int x,y;
int ca=0;
scanf("%d",&T);
while(T--)
{

Make_Set();
scanf("%d%d",&n,&m);
for(i=1;i<=m;i++)
{
scanf("%d%d",&x,&y);
if(Find_Set(x)==Find_Set(y))break;
Union(x,y+maxs);
Union(x+maxs,y);
}
for(j=i+1;j<=m;j++)
scanf("%d%d",&x,&y);
printf("Scenario #%d:/n",++ca);
if(i<=m)
printf("Suspicious bugs found!/n/n");
else
printf("No suspicious bugs found!/n/n");
}
system("pause");
return 0;
}