回文数-使用指针

#include <iostream>using namespace std;bool isPalindrome(char *input){if(input == NULL){return false;}//char *begin = input;char *end = begin + strlen(input)-1;while(begin < end){if(*begin++ != *end--){return false;}}return true;}void main(){//char *str = "abca";char *str;//char *str = "";cout <<( isPalindrome(str) ? "Yes":"No" )<<endl;}