Accepted
Code
#include <iostream>
using namespace std;
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
int tt; cin >> tt; while (tt--) {
int n; cin >> n;
int cnt[3] = {0, 0, 0};
for (int i = 0; i < n; i++) {
int x; cin >> x; cnt[x % 3]++;
}
int ans = 0, tot = 0;
for (int i = 0; i < 3; i++) {
tot += (i * cnt[i]); ans += cnt[i];
}
int dec = 0;
if (tot % 3 != 0) {
dec = cnt[tot % 3] ? 1 : 2;
}
cout << ans - dec << '\n';
}
return 0;
}
Information
- Submit By
- Type
- Submission
- Problem
- P1013 Divisible by 3
- Language
- C++17 (G++ 13.2.0)
- Submit At
- 2024-10-03 21:34:39
- Judged At
- 2024-11-11 02:44:20
- Judged By
- Score
- 100
- Total Time
- 2ms
- Peak Memory
- 568.0 KiB