纯枚举

我这写法也算离奇了

#include<bits/stdc++.h>
using namespace std;
int main(){
    for(int i=123;i<=987;i++){
        int b=i*2;
        int c=i*3;
        int a1=i/100;
        int a2=i/10%10;
        int a3=i%10;
        int b1=b/100;
        int b2=b/10%10;
        int b3=b%10;
        int c1=c/100;
        int c2=c/10%10;
        int c3=c%10;
        if((double)(c)/(double)(b)==1.5&&i<1000&&b<1000&&c<1000&&a1!=0&&a2!=0&&a3!=0&&b1!=0&&b2!=0&&b3!=0&&c1!=0&&c2!=0&&c3!=0){
            if(a1!=a2&&a1!=a3&&a1!=b1&&a1!=b2&&a1!=b3&&a1!=c1&&a1!=c2&&a1!=c3){
                if(a2!=a3&&a2!=b1&&a2!=b2&&a2!=b3&&a2!=c1&&a2!=c2&&a2!=c3){
                    if(a3!=b1&&a3!=b2&&a3!=b3&&a3!=c1&&a3!=c2&&a3!=c3){
                        if(b1!=b2&&b1!=b3&&b1!=c1&&b1!=c2&&b1!=c3){
                            if(b2!=b3&&b2!=c1&&b2!=c2&&b2!=c3){
                                if(b3!=c1&&b3!=c2&&b3!=c3){
                                    if(c1!=c2&&c1!=c3){
                                        if(c2!=c3){
                                            cout<<i<<" "<<b<<" "<<c<<endl;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return 0;
}