[C++]百钱买百鸡

/*<p>1.       （百钱买百鸡）雄鸡7元1只，母鸡5元1只，小鸡1元3只。花100元钱，买100只鸡，如果雄鸡、母鸡和小鸡都必须有，则雄鸡、母鸡和小鸡各买几只？</p>*/

#include<iostream>
#include<string>

using namespace std;

void main()
{
int gj, mj, xj;
for (gj = 1; gj < 15; gj++)
{
for (mj = 1; mj <= 20; mj++)
{
for ( xj = 3; xj <=100; xj+=3)
{
if ((gj+mj+xj==100)&&(7*gj+5*mj+1/3*xj))
{
cout << gj << ' ' << mj << ' ' << xj << endl;
return;
}
}
}
}
cout << "no answer" << endl;
}