Submission #420303

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
420303	2021-06-08 09:25:41	IOrtroiii	Financial Report (JOI21_financial)	C++14	100 / 100	1268 ms	38976 KiB

Main

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#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
  ios_base::sync_with_stdio(false); cin.tie(nullptr);
 
  int N, D; cin >> N >> D;
  vector<int> A(N); for (int &a : A) cin >> a;
  
  vector<int> ord(N); iota(ord.begin(), ord.end(), 0);
  sort(ord.begin(), ord.end(), [&](const int &i, const int &j) { 
    return make_pair(A[i], -i) < make_pair(A[j], -j); 
  });
  vector<int> loc(N);
  for (int i = 0; i < N; ++i) loc[ord[i]] = i;
 
  struct Node {
    int best = 0;
    int pref = 0;
    int suff = 0;
    bool all = false;
  };
 
  auto merge = [&](Node l, Node r) {
    Node ans;
    ans.all = l.all & r.all;
    ans.best = max({l.best, r.best, l.suff + r.pref});
    ans.pref = l.all ? l.pref + r.pref : l.pref;
    ans.suff = r.all ? r.suff + l.suff : r.suff;
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 12 / 12
• Subtask 5: 5 / 5
• Subtask 6: 35 / 35