请大佬看一下

#include<bits/stdc++.h>
using namespace std;
int main(){
long long n;
cin>>n;
int c=c%n;
n/=10;
int b=n%10;
int a=n/10;
int ans=a+b+c;
int qw=ans*ans;
int as=ans*ans*ans;
cout<<ans<<endl<<qw<<endl<<as<<endl;
}