题解

#include<bits/stdc++.h>
using namespace std;

int main()
{
    string str;
	cin >> str;
	int n=str.length(),i;
	bool ispalindrome=true;
	for (i=0;i<n/2;i++)
	{
		if (str[i]!=str[n-i-1])
		    ispalindrome=false;
	}
	if (ispalindrome)
	    cout << "Yes";
	else
	    cout << "No";
}