#include<bits/stdc++.h> using namespace std; string hws(int n){ int s=0; int m=n; while(n!=0){ s*=10; s+=n%10; n/=10; } if(s==m){ return "Yes"; }else{ return "No"; } } int main(){ int h; cin>>h; cout<<hws(h); return 0; }

#include <bits/stdc++.h> using namespace std; bool ss(int a) { int sum=0,t=a; while(t) { sum=sum*10+t%10; t/=10; } return sum==a; } int main() { int a; cin>>a; if(ss(a)) cout<<"Yes"; else cout<<"No"; return 0; }

反转数更好做

#include<bits/stdc++.h> using namespace std; int huiwen(int n){ int t=n,sum=0; } int main(){ int n; cin>>n; if(huiwen(n)) cout<<"Yes"; else cout<<"No"

#include<bits/stdc++.h> using namespace std; int huiwen(int n){ int t=n,sum=0; } int main(){ int n; cin>>n; if(huiwen(n)) cout<<"Yes"; else cout<<"No"; }