Submission #532152

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
532152	2022-03-02 07:46:31	fhvirus	Naan (JOI19_naan)	C++17	29 / 100	65 ms	10408 KiB

naan

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#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  int N, L; cin >> N >> L;
  vector<int> V(L + 1);
  vector<vector<pair<int64_t, int64_t>>> cut(N + 1, vector<pair<int64_t, int64_t>>(L + 1));
  for (int i = 1; i <= N; ++i) {
    for (int j = 1; j <= L; ++j)
      cin >> V[j];
    int64_t tot = 0, sum = 0;
    for (int j = 1; j <= L; ++j) tot += V[j];
    for (int j = 1, k = 1; j <= N; ++j) {
      while (k < L and (sum + V[k]) * N < tot * j) sum += V[k++];
      int64_t a = 1ll * N * V[k] * (k - 1) + tot * j - sum * N;
      int64_t b = 1ll * N * V[k];
      int64_t g = gcd(a, b);
      cut[i][j] = make_pair(a / g, b / g);
    }
  }
  auto cmp = [&](int i, int j, int k) -> bool {
    return (__int128) cut[j][i].first * cut[k][i].second
    < (__int128) cut[k][i].first * cut[j][i].second;
  };
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 24 / 24
• Subtask 3: 0 / 71