Submission #990038

#	Time	Username	Problem	Language	Result	Execution time	Memory
990038		tch1cherin	Money (IZhO17_money)	C++17	0 / 100	1 ms	348 KiB

money

#include <bits/stdc++.h>
using namespace std;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int N;
  cin >> N;
  vector<int> a(N);
  for (int &value : a) {
    cin >> value;
  }
  set<int> S = {a[0]};
  int answer = 1;
  for (int i = 1; i < N; i++) {
    S.insert(a[i]);
    if (a[i] < a[i - 1]) {
      answer++;
    } else {
      auto it = S.upper_bound(a[i - 1]);
      answer += it != S.end() && *it < a[i];
    }
  }
  cout << answer << "\n";
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55