OJ-Problems-Source/HDOJ/2860_autoAC.cpp

69 lines
1.7 KiB
C++
Raw Permalink Normal View History

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
const int N=100111;
int n,m,q;
int pre[N],val[N];
void build()
{
int i;
int a,b;
memset(val,-1,sizeof(val));
for(i=0;i<n;i++) pre[i]=i;
while(m--)
{
scanf("%d%d",&a,&b);
if(val[b]==-1 || a<val[b]) val[b]=a;
}
}
int find(int k)
{
if(pre[k]==k) return k;
pre[k]=find(pre[k]);
return pre[k];
}
int main()
{
int a,b;
char str[11];
while(scanf("%d%d%d",&n,&m,&q)!=-1)
{
build();
while(q--)
{
scanf("%s",str);
if(str[0]=='A')
{
scanf("%d%d",&a,&b);
if(pre[b]!=b) printf("Reject\n");
else
{
printf("Accept\n");
if(val[b]==-1 || a<val[b]) val[b]=a;
}
}
else if(str[0]=='M')
{
scanf("%d%d",&a,&b);
if(pre[a]!=a || pre[b]!=b || a==b) printf("Reject\n");
else
{
printf("Accept\n");
pre[b]=a;
if(val[b]!=-1 && (val[a]==-1 || val[b]<val[a])) val[a]=val[b];
}
}
else
{
scanf("%d",&a);
if(pre[a]==a && val[a]!=-1) printf("Lowest rate: %d.\n",val[a]);
else if(pre[a]==a && val[a]==-1)printf("Company %d is empty.\n",a);
else if(pre[a]!=a) printf("Company %d is a part of company %d.\n",a,find(a));
}
}
cout<<endl;
}
return 0;
}