/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 1ms 536.0 KiB
#2 Accepted 1ms 324.0 KiB
#3 Accepted 2ms 336.0 KiB
#4 Accepted 2ms 532.0 KiB
#5 Accepted 2ms 512.0 KiB
#6 Accepted 2ms 532.0 KiB
#7 Accepted 1ms 532.0 KiB

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
2024-10-03 21:34:39
Judged By
Score
100
Total Time
2ms
Peak Memory
536.0 KiB