fork download
copy 
  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n = 5;
  7. 	int arr[] = {1,2,3,4,5};
  8. 	for(int i =0; i<n-1; i= i+2)
  9.         {
  10.             if(arr[i]<=arr[i+1])
  11.             {
  12.                 swap(arr[i], arr[i+1]);
  13.             }
  14.  
  15.     }
  16.     for(int i =0;i<n; i++)
  17.     cout<<arr[i]<<" "<<endl ;
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5500KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
2 
1 
4 
3 
5
https://ideone.com/tWaHJ6
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!