求解问题

#include<iostream>
using namespace std;

int main()
{  
   const int min=1;
   const int max=6;
  for(int i=min;i<=max;++i)
        for(int j=min;j<=max;++j)
            for(int k=min;k<=max;++k)
                for(int l=min;l<=max;++l)
                    for(int m=min;m<=max;++m)
                        for(int n=min;n<=max;++n){
                            if(i==j||i==k||i==l||i==m||i==n||j==k||j==l||j==m||j==n
                               ||k==l||k==m||k==n||l==m||l==n||m==n)
                                continue;
                            if(i+j+k==k+l+m && k+l+m==i+m+n){
                            cout<<"     "<<i<<endl
                                <<"   "<<j<<"   "<<n<<endl
                                <<"  "<<k<<"  "<<l<<"  "<<m<<endl;
                            cout<<"***********************"<<endl;
                            }
                        }
                   system("pause");
                  return 0;
    }