#include<iostream> using namespace std; int main(){ int n; cin>>n; cout<<n%10; cout<<n/10%10; cout<<n/100; }

#include<iostream> using namespace std; int main(){ int a; cin>>a; cout<< a%10 ; cout<<a/10%10; cout<<a/100; return 0; }

代码如下

#include <iostream>using namespace std;int main(){;int a;cin>>a;cout<<a%10<<a/10%10<<a/100;return 0;}

#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; for(int i=0;i<3;++i){ cout<<a%10; a/=10; } }