这个题目出的不严谨,至少测试数据太弱了。可以每次先灌满A瓶,也可以每次都先灌满B瓶,反正题目都说了肯定有解,我感觉应该只能让最优解通过测试。

代码1

#include <iostream>
using namespace std;

int main()
{
    
int nA,nB,n,rstA,rstB;
    
while (cin>>nA>>nB>>n)
    {
        rstA 
= 0;
        rstB 
= 0;
        
if (nB==n)
        {
            cout
<<"fill B"<<endl;
            cout
<<"success"<<endl;
            
continue;
        }
        
if (nA==n)
        {
            cout
<<"fill A"<<endl;
            cout
<<"pour A B"<<endl;
            cout
<<"success"<<endl;
            
continue;
        }
        
while (rstB!=n)
        {
            
if(rstA==0)
            {
                rstA
=nA;
                cout
<<"fill A"<<endl;
            }
            
if(rstB==nB)
            {
                rstB
=0;
                cout
<<"empty B"<<endl;
            }
            
if(rstA>(nB-rstB))
            {
//第二个容器中还有空,从第一个容器中取水将其灌满
                rstA-=(nB-rstB);//从第一个容器取水
                rstB=nB;//第二个容器满了
                cout<<"pour A B"<<endl;
            }
            
else
            {
//第一个容器中的水都倒入第二个
                rstB+=rstA;
                rstA
=0;
                cout
<<"pour A B"<<endl;
            }
        }
        cout
<<"success"<<endl;
    }
    
return 0;
}

代码2

#include <iostream>
using namespace std;

int main()
{
    
int nA,nB,n,rstA,rstB;
    
while (cin>>nA>>nB>>n)
    {
        rstA 
= 0;
        rstB 
= 0;
        
if (nB==n)
        {
            cout
<<"fill B"<<endl;
            cout
<<"success"<<endl;
            
continue;
        }
        
if (nA==n)
        {
            cout
<<"fill A"<<endl;
            cout
<<"pour A B"<<endl;
            cout
<<"success"<<endl;
            
continue;
        }
        
while (rstB!=n)
        {
            
if(rstB==0)
            {
                rstB
=nB;
                cout
<<"fill B"<<endl;
            }
            
if(rstA==nA)
            {
                rstA
=0;
                cout
<<"empty A"<<endl;
            }
            
if(rstB>(nA-rstA))
            {
//第一个容器中还有空,从第二个容器中取水将其灌满
                rstB-=(nA-rstA);//从第二个容器取水
                rstA=nA;//第一个容器满了
                cout<<"pour B A"<<endl;
            }
            
else
            {
//第二个容器中的水都倒入第一个
                rstA+=rstB;
                rstB
=0;
                cout
<<"pour B A"<<endl;
            }
        }
        cout
<<"success"<<endl;
    }
    
return 0;
}