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  1. #include<stdio.h>
  2. /* function to reverse a string */
  3. void reverse(char *start, char *end);
  4.  
  5. /*Function to reverse words*/
  6. void reversewords(char *s)
  7. {
  8.   char *word = s;
  9.   char *temp = s; 
  10.  
  11.   /*start reversing the individual words*/
  12.   while( *temp ) 
  13.   {
  14.     temp++;
  15.     if (*temp == '\0')
  16.     {
  17.       reverse(word, temp-1);
  18.     }
  19.     else if(*temp == ':')
  20.     {
  21.       reverse(word, temp-1);
  22.       word = temp+1;
  23.     }
  24.   }  
  25.   reverse(s, temp-1);/*Reverse the resultant string from beginning to end including spaces*/
  26. }
  27. /*Function to reverse a string this is similar to earlier blog post to reverse a string */
  28. void reverse(char *start, char *end)
  29. {
  30.   char temp;
  31.   while (start < end)
  32.   {
  33.     temp = *start;
  34.     *start++ = *end;
  35.     *end-- = temp;
  36.   }
  37. }
  38. int main()
  39. {
  40.   char s[] = "23:24:28:10:29:18:12:24:11:27:10:22:10:20:28";
  41.   char *temp = s;
  42.   printf("Original string: %s\n",s);
  43.   reversewords(s);
  44.   printf("Reverse word string: %s\n", s);
  45.   return 0;
  46. }
Success #stdin #stdout 0s 2852KB
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Standard input is empty
stdout
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Original string: 23:24:28:10:29:18:12:24:11:27:10:22:10:20:28
Reverse word string: 28:20:10:22:10:27:11:24:12:18:29:10:28:24:23
https://ideone.com/Xc1Sz5
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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