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  1. #include <stdlib.h>
  2. #include <stdio.h>
  3. #include <string.h>
  4. #include <ctype.h>
  5.  
  6. int iswhite(int c)
  7. {
  8.     return !c || isspace(c) || ispunct(c);
  9. }
  10.  
  11. void swap(char* a, char * b)
  12. {
  13.     char t = *a;
  14.     *a = *b;
  15.     *b = t;
  16. }
  17.  
  18. void reverseWord(char * b, char * e)
  19. {
  20.     while(b < e)
  21.     {
  22.         swap(b++,e--);
  23.     }
  24. }
  25.  
  26. char * reverse(char * s)
  27. {
  28.     reverseWord(s,s+strlen(s)-1);
  29.     for(char* c = s; *c; ++c)
  30.     {
  31.         if (iswhite(*c)) continue;
  32.         char * b = c;
  33.         while(!iswhite(*c)) ++c;
  34.         reverseWord(b,c-1);
  35.     }
  36.     return s;
  37. }
  38.  
  39. char s[] = "Привет, это длинное предложение!";
  40.  
  41. int main(int argc, const char * argv[])
  42. {
  43.     puts(reverse(s));
  44. }
  45.  
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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!предложение длинное это ,Привет
https://ideone.com/VqRJDc
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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