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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4.     int t;
  5.     cin>>t;
  6.     while(t--){
  7.         int n;
  8.         cin>>n;
  9.         int a[n+1];
  10.         for(int i=1;i<=n;i++){
  11.             cin>>a[i];
  12.         }
  13.         for(int i=n/2-1;i>=1;i--){
  14.             if(a[i]==a[i+1] || a[n-i+1]==a[n-i]){
  15.                 swap(a[i],a[n-i+1]);
  16.             }
  17.         }
  18.         for(int i=1; i<=n; ++i) cout << a[i] << ' '; 
  19.         cout << '\n';
  20.     }
  21. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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1
7
3 1 3 2 2 3 3
stdout
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3 1 3 2 2 3 3
https://ideone.com/6zdZhS
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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