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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int n;
  4. int main(){
  5.     ios::sync_with_stdio(0);
  6.     cin.tie(0);
  7.     cin >> n;
  8.     if(n == 3 || n == 2 ){
  9.         cout << "NO SOLUTION";
  10.     }
  11.     else if(n == 4){
  12.         cout << "3 1 4 2";
  13.     }
  14.     else{
  15.     for(int i = n;i > 0; i -=2){
  16.             cout << i << " ";
  17.         }
  18.     for(int i = n - 1;i > 0; i -=2){
  19.             cout << i << " ";
  20.         }
  21.     }
  22.     return 0;
  23.  
  24. }
  25.  
Success #stdin #stdout 0.01s 5288KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/CgoqJo
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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