题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    for(int i = 100;i<=999;i++){
        int a = i;
        int b = i*2;
        int c = i*3;//三个数字
        int s[114514] = {};//储存数字
        s[a%10]++;
        s[a/10%10]++;
        s[a/100]++;
        s[b%10]++;
        s[b/10%10]++;
        s[b/100]++;
        s[c%10]++;
        s[c/10%10]++;
        s[c/100]++;
        if(s[1]==1&&s[2]==1&&s[3]==1&&s[4]==1&&s[5]==1&&s[6]==1&&s[7]==1&&s[8]==1&&s[9]==1)cout<<a<<" "<<b<<" "<<c<<endl;
    }
    return 0;
}