ZOJ 1005 jugs 超时问题

#include <iostream>

using namespace std;

int main(){

	int m,n,k,r;

	while(std::cin>>m>>n>>k){

		r=n-m;

		cout<<"fill B"<<endl;

		cout<<"pour B,A"<<endl;

		while(r!=k){

			if(r<m){

			  r=n-(m-r);

			  cout<<"empty A"<<endl<<"pour B,A"<<endl<<"fill B"<<endl<<"pour B,A"<<endl;

			}else{

				r=r-m;

				cout<<"empty A"<<endl<<"pour B,A"<<endl;

			}

		}

		cout<<"success"<<endl;

	}

}