Cent saving

#include <bits/stdc++.h>
using namespace std;
#define int long long
 
const int N = 1e5 + 5;
 
int n, p[N];
int cnt[10];
 
void solve() {
    cin >> n;
    memset(cnt, 0, sizeof cnt);
 
    int sum = 0;
    for (int i = 1; i <= n; i++) {
        cin >> p[i];
        sum += p[i];
 
        p[i] %= 5;
        cnt[p[i]]++;
    }
 
    int res = 0;
    {
 
    int take = min(cnt[3], cnt[4]);
 
    for (int t = 0; t <= take; t++) {
        int ans = 0;
        ans += t * 2;
 
        ans += ((cnt[3] - t) / 2);
        ans += ((cnt[4] - t) / 3) * 2;
 
        ans += cnt[1];
        ans += cnt[2] * 2;
        res = max(res, ans);
    }   
    }
 
    {
    int take = cnt[4] / 3;
 
    for (int t = 0; t <= take; t++) {
        int ans = 0;
        ans += t * 2; // 4 4 4
 
        int pair = min(cnt[3], cnt[4] - t * 3);
        ans += ((cnt[3] - pair) / 2); // 3 3
        ans += pair * 2; // 3 4
 
        ans += cnt[1];
        ans += cnt[2] * 2;
        res = max(res, ans);
    }
}   
 
 
    cout << sum - res << '\n';
}
 
signed main() {
    cin.tie(0)->sync_with_stdio(0);
 
    int t;
    cin >> t;
 
    while (t--) {
        solve();
    }
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER