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  1.  
  2. #include <stdio.h>
  3. #include <string.h>
  4.  
  5. void rev(char s[]){
  6.     for(int i=0,j=strlen(s)-1;i<j;i++,j--){ char t=s[i]; s[i]=s[j]; s[j]=t; }
  7. }
  8.  
  9. int main(){
  10.     char s[100];
  11.     printf("Enter string:\n ");
  12.     gets(s);
  13.     rev(s);
  14.     printf("Reversed=%s",s);
  15. }
  16.  
Success #stdin #stdout 0s 5292KB
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stdin
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hello world
stdout
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Enter string:
 Reversed=dlrow olleh
https://ideone.com/tBvXGo
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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