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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4.  
  5. int main(void) {
  6.     int i = 0;
  7.     char str[] = "testString";
  8.     int len = strlen(str);
  9.  
  10.     for(i = 0; i < len/2; i++){
  11.     	str[len - i - 1] ^= str[i];
  12.     	str[i] ^= str[len - i - 1];
  13.     	str[len - i - 1] ^= str[i];
  14.     }
  15.  
  16.     printf("Reverse String %s \n", str);
  17.  
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 2248KB
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stdin
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Standard input is empty
stdout
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Reverse String gnirtStset
https://ideone.com/vfTxcr
Reverse String
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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