zoj 1331 Perfect Cubes

#include<iostream>using namespace std;int main( void){    int a, aaa, b, bbb, c, ccc, d, ddd;    for( a = 6; a <=200; a++)    {aaa = a*a*a;for( b = 2; b < a; b++){    bbb = b*b*b;    for( c = b+1; c < a; c++)    {ccc = c*c*c;for( d = c+1; d < a; d++){    ddd = d*d*d;    if( aaa < bbb + ccc + ddd)break;    if( aaa == bbb + ccc + ddd)    {cout<<"Cube = "<<a    <<", Triple = ("    <<b<<","<<c<<","<<d<<")"    <<endl;    }}    }}    }    return 0;}