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  1. #include <stdio.h>
  2.  
  3. void stringReverse(const char *s);
  4.  
  5. int main(void) {
  6.     char string[] = "Hello world";
  7.  
  8.     printf("Original string: %s\n", string);
  9.     printf("Reversed string: ");
  10.     stringReverse(string);
  11.     printf("\n");
  12.  
  13.     return 0;
  14. }
  15.  
  16. void stringReverse(const char *s) {
  17.     if (s[0] == '\0') {
  18.         return;
  19.     }
  20.  
  21.     stringReverse(&s[1]);
  22.     putchar(s[0]);
  23. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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Original string: Hello world
Reversed string: dlrow olleH
https://ideone.com/U53RD9
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

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