回文数扩展--长字符串版

//回文数扩展 长字符串版#include<iostream>#include<string>using namespace std;int main(){string str,s;cin>>str;int n=str.size();for(int i=n-1;i>=0;i--){s.push_back(str[i]);}if(str==s){cout<<"是回文"<<endl;}else{cout<<"不是回文"<<endl;}system("pause");return 0;}