题解

#include <bits/stdc++.h>
using namespace std;
int a,b,c;
int sum=0,ans=1;
int main()
{
	a=123;
	while(a<=333)
	{
		b=2*a;
		c=3*a;
		sum = a/100+a/10%10+a%10+b/100+b/10%10+b%10+c/100+c/10%10+c%10;//a+b+c==1+2+3+4+5+6+7+8+9
		ans = (a/100)*(a/10%10)*(a%10) * (b/100)*(b/10%10)*(b%10)*(c/100)*(c/10%10)*(c%10); 
		if((sum==1+2+3+4+5+6+7+8+9) and (ans==1*2*3*4*5*6*7*8*9))
		{
			cout<<a<<" "<<b<<" "<<c<<endl;
		}
		a++;
	}
	return 0;
}