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  1. #include <stdio.h>
  2.  
  3. // PROGRAM TO REVERSE THE ARRAY WITHOUT USING EXTRA ARRAY
  4.  
  5. void reverse(int arr[]){
  6.       int i=0;
  7.       int j=5;
  8.       while(i<j){
  9.        int temp=arr[i];
  10.        arr[i] = arr[j];
  11.        arr[j]= temp;
  12.        i++;
  13.        j--;
  14.        }
  15.    return;
  16. }       
  17.  
  18. int main(void) {
  19. 	int arr[6]={6,5,4,3,2,1};
  20.  
  21.      reverse(arr);
  22.  
  23.          for(int i=0;i<6;i++){
  24.            printf("%d",arr[i]);
  25.           }
  26.   	 return 0;
  27. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
123456
https://ideone.com/IvdvAN
language:
C (gcc 8.3)
created:
9 hours ago
visibility:
public

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