fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     int n,i=0,j=1,k;
  7.     cin>>n;
  8.     if(n%2==0) {cout<<"NO";return 0;}
  9.     int a[2*n+2];
  10.     a[1]=1;
  11.     for(i=1,k=2;i<n;i+=1)
  12.     {
  13.         a[n+i]=k++;
  14.         a[n+i+1]=k++;
  15.         i++;
  16.         a[i]=k++;
  17.         a[i+1]=k++;
  18.     }
  19.     a[2*n]=2*n;
  20.     cout<<"YES"<<endl;
  21.     for(i=1;i<=2*n;i++) cout<<a[i]<<" ";
  22. }
Success #stdin #stdout 0s 4504KB
comments (?)
stdin
copy 
5
stdout
copy 
YES
1 4 5 8 9 2 3 6 7 10
https://ideone.com/gv1fNo
language:
C++14 (gcc 8.3)
created:
4 years 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!