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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int long long
  4. #define faster() ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  5.  
  6. void solve() {
  7.     int n;
  8.     cin >> n;
  9.     int a[n], count0 = 0, count1 = 0, count2 = 0;
  10.  
  11.     for (int i = 0; i < n; i++) {
  12.         cin >> a[i];
  13.         if (a[i] == 0) count0++;
  14.         else if (a[i] == 1) count1++;
  15.         else count2++;
  16.     }
  17.  
  18.     for (int i = 0; i < count0; i++) cout << "0 ";
  19.     for (int i = 0; i < count1; i++) cout << "1 ";
  20.     for (int i = 0; i < count2; i++) cout << "2 ";
  21.  
  22.     cout << '\n';
  23. }
  24.  
  25. signed main() {
  26.     int test;
  27.     cin >> test;
  28.     while (test--) {
  29.         solve();
  30.     }
  31. }
  32.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
copy 
2
5
0 2 1 2 0

3
0 1 0
stdout
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0 0 1 2 2 
0 0 1
https://ideone.com/wCDO0B
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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