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  1. #include <stdio.h>
  2. #include <ctype.h>
  3.  
  4. int getWord(char str[], char** begin, char** end) {
  5.     for (; *str && !isalpha(*str); ++str) { ; }
  6.     *begin = str;
  7.  
  8.     for (; *str && isalpha(*str); ++str) { ; }
  9.     *end = str;
  10.  
  11.     return *end - *begin;
  12. }
  13.  
  14. unsigned getCount(char text[]) {
  15.     unsigned cnt = 0;
  16.     char* begin, * end;
  17.  
  18.     while (getWord(text, &begin, &end) > 0) {
  19.         if (tolower(*begin) == tolower(*(end - 1))) {
  20.             cnt++;
  21.         }
  22.         text = end;
  23.     }
  24.     return cnt;
  25. }
  26.  
  27. int main() {
  28.     char text[] = "This is test text.";
  29.  
  30.     printf("%d\n", getCount(text));
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 2052KB
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https://ideone.com/OoR79M
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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