用1,2,3……,9组成3个三位数abc,def和ghi,每个数字恰好使用一次,要求abc:def:ghi=1:2:3.输出所有解。
#include
void result(int num, int &result_add, int &result_mul)
{
int i, j, k;
i = num / 100;
j = num / 10 % 10;
k = num % 10;
result_add += i + j + k;
result_mul *= i * j * k;
}
int main()
{
int i, j, k;
int result_add, result_mul;
for(i = 123; i <=329; i++)
{
j = i * 2;
k = i * 3;
result_add = 0;
result_mul = 1;
result(i, result_add, result_mul);
result(j, result_add, result_mul);
result(k, result_add, result_mul);
if(result_add == 45 && result_mul == 362880)
printf("%d %d %dn", i, j, k);
}
return 0;
}
