Write a program to find the longest palindrome in any given string. Ex:forgeeksskeegfor Ans: geeksskeeg

1:  #include <stdio.h>  
2:  #include <stdlib.h>  
3:  #include <string.h>  
4:  int check_palindrom(char *start, char *end)  
5:  {  
6:    if ( ((start+1) == end) || (start == (end-1)) || (start == end))  
7:      return 0;  
8:    if ( *start != *end)  
9:      return -1;  
10:    if ( *start == *end)  
11:    {  
12:      start++;  
13:      end--;  
14:      return check_palindrom(start,end);  
15:    }  
16:  }  
17:  main()  
18:  {  
19:    char *str = "forgeeksskeegfor";  
20:    char *start, *end, *temp1, *temp2;  
21:    int flag = 0,len = strlen(str);  
22:    len--;  
23:    start = str;  
24:      while(*start != '\0')  
25:    {  
26:      end = str + len;  
27:      while(start != end)  
28:      {  
29:        if ( *start == *end)  
30:        {  
31:          if ( 0 == check_palindrom(start,end))  
32:          {  
33:            printf("Yes it <%.*s> is palindrom \n",  
34:                end +1 - start,start);  
35:            flag = 1;  
36:            break;  
37:          }  
38:        }  
39:        end--;  
40:      }  
41:        start++;  
42:        if ( flag == 1)  
43:          break;  
44:    }  
45:  }