codeforce - translation

#include<bits/stdc++.h>
using namespace std;
#define fastread()(ios_base::sync_with_stdio(false),cin.tie(NULL));
int main()
{
    fastread()
    string x,y;
    cin>>x>>y;
    int a=x.size(),b=y.size();
    bool flag= true;
    if(a==b)
    {
        for(int i=0,j=a-1;i<a,j>=0;i++,j--)
        {
            if(x[i]!=y[j])
            {
                flag= false;
                break;
            }
        }
        if(flag)cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
    }
    else cout<<"NO"<<endl;
}