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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4. #define int long long
  5. #define yes cout << "YES\n";
  6. #define no cout << "NO\n";
  7.  
  8.  
  9. void FastIO(){
  10.     ios_base::sync_with_stdio(false);
  11.     cin.tie(nullptr);
  12.     cout.tie(nullptr);
  13. }
  14.  
  15. void solve(){
  16.     int n;
  17.     cin >> n;
  18.  
  19.     vector<int>vec(n);
  20.     vector<int> odd;
  21.  
  22.     int sumEven = 0, ans = 0;
  23.     for(int i = 0; i < n; i++){
  24.         cin >> vec[i];
  25.         if(vec[i]%2 == 0){
  26.             sumEven += vec[i];
  27.         }
  28.         else{
  29.             odd.push_back(vec[i]);
  30.         }
  31.     }
  32.  
  33.     if(!odd.empty()){
  34.         ans += sumEven;
  35.     }
  36.  
  37.     sort(odd.rbegin(), odd.rend());
  38.  
  39.     int sz;
  40.     if(odd.size() %2 == 0){
  41.         sz = odd.size()/2;
  42.     }
  43.     else{
  44.         sz = (odd.size()/2) + 1;
  45.     }
  46.     for(int i = 0; i < sz; i++){
  47.         ans += odd[i];
  48.     }
  49.  
  50.     cout << ans << "\n";
  51. }
  52.  
  53. signed main(){
  54.     FastIO();
  55.  
  56.     int t;
  57.     cin >> t;
  58.  
  59.     while(t--){
  60.         solve();
  61.     }
  62.     return 0;
  63. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
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3
3
2 4 6
4
4 2 1 6
4
1000000000 999999999 1000000000 999999999
stdout
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0
13
2999999999
https://ideone.com/0UvYsC
Destruction of the Dandelion Fields
language:
C++14 (gcc 8.3)
created:
17 days ago
visibility:
public

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