判断回文字符串

1 #include "stdafx.h"
 2 #include "iostream"
 3 
 4 using namespace std;
 5 
 6 int isechol (const char* str)
 7 {
 8     int length = strlen(str);
 9     for (int i=0; i<length/2; i++)
10     {
11         // 0代表不是，1代表是
12         if (str[i] != str[length-i-1])
13         {    
14             return 0;
15         }
16     }
17     return 1;
18 }
19 
20 int main(int argc, char* argv[])
21 {
22     printf("Hello World!\n");
23     char buf[10] = "abcddcba";
24     if (isechol(buf))
25         cout << buf << " is echol" << endl;
26     else
27         cout << buf << " is not echol" << endl;
28     return 0;
29 }