用for来解题（范围限定自己理解）

#include<iostream>
using namespace std;
int main(){
    for (int i=123; i<334; i++){
        if (i%5==0) continue;
        if (i<200&&i>195||i<300&&i>295) continue;
        if (i<215&&i>200||i<315&&i>300) continue;
        int a1=i*1,a2=i*2,a3=i*3;
        if (a1/10%10==0||a2/10%10==0||a3/10%10==0) continue;
        if (a1/100!=a1/10%10&&a1/10%10!=a1%10&&a1%10!=a1/100){
            if (a2/100!=a2/10%10&&a2/10%10!=a2%10&&a2%10!=a2/100){
                if (a3/100!=a3/10%10&&a3/10%10!=a3%10&&a3%10!=a3/100){
                    if (a1/100!=a2/10%10&&a2/10%10!=a3%10&&a3%10!=a1/100){
                        if (a2/100!=a3/10%10&&a3/10%10!=a1%10&&a1%10!=a2/100){
                            if (a3/100!=a1/10%10&&a1/10%10!=a2%10&&a2%10!=a3/100){
                                if (a1/100!=a3/10%10&&a3/10%10!=a2%10&&a2%10!=a1/100){
                                    if (a2/100!=a1/10%10&&a1/10%10!=a3%10&&a3%10!=a2/100){
                                        if (a3/100!=a2/10%10&&a2/10%10!=a1%10&&a1%10!=a3/100){
                                            cout << a1 << " " << a2 << " " << a3 << endl;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return 0;
}