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  1.  #include <bits/stdc++.h>
  2. #include<iostream>
  3. #include<deque>
  4. #include<queue>
  5. #include<stack>
  6. #include<vector>
  7. #include<algorithm>
  8. #define ll long long
  9. using namespace std;
  10. int main() {
  11.     ios::sync_with_stdio(0);
  12.     cin.tie(NULL), cout.tie(NULL);
  13.     //freopen("mex.in", "r", stdin);
  14.  
  15.     ll t = 1; cin >> t;
  16.     while (t--) {
  17.         ll n;
  18.         cin >> n;
  19.         deque<ll>v;
  20.         map<ll, ll>mp;
  21.         for (ll i = 0, x; i < n; i++) {
  22.             cin >> x;
  23.             mp[x]++;
  24.         }
  25.         ll size = mp.size();
  26.         for (ll i = 1; i <= size; i++) {
  27.             cout << size << ' ';
  28.         }
  29.         for (ll i = size + 1; i <= n; i++) {
  30.             cout << i << ' ';
  31.         }
  32.         cout << endl;
  33.     }
  34.     return 0;
  35. }
Success #stdin #stdout 0.01s 5316KB
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stdin
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stdout
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2 2 3 
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https://ideone.com/ByKBnN
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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