Cent saving

#include <bits/stdc++.h>

using namespace std;

int main(){
  cin.sync_with_stdio(0);
  cin.tie(0);
  
  int tests; cin >> tests;
  int p[101010];
  while(tests--){
    int n; cin >> n;
    int sum = 0;
    for(int i = 0; i < n; i++){
      cin >> p[i];
      sum+=p[i];
    }
    int c[5] = {0};
    
    for(int i = 0; i < n; i++)
      c[p[i]%5]++;
    int mi34 = min(c[3], c[4]);
    sum-=2*mi34;
    c[3]-=mi34;
    c[4]-=mi34;
    
    sum-=(c[4]/3)*2;
    c[4]-=c[4]/3;
    sum+=c[4];
    
    sum-=(c[3]/2);
    c[3]-=c[3]/2;
    sum+=c[3]*2;
    
    sum-=2*c[2];
    sum-=c[1];
    
    cout << sum << endl;
  }
    
    
  return 0;
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER