Submission #853291

#	Time	Username	Problem	Language	Result	Execution time	Memory
853291		NeroZein	Money (IZhO17_money)	C++17	0 / 100	1 ms	2396 KiB

money

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

#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

const int N = 1e6 + 6;

int a[N];
int seg[N * 2];
int tt[N];

void upd(int i, int val) {
  tt[i] = val;
}

signed main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  int ans = 1;
  vector<int> v;
  for (int i = 0; i < n; ++i) {
    if (v.empty()) {
      v.push_back(a[i]);
      upd(a[i], a[i]);
    } else {
      if (v.back() > a[i]) {
        ans++; 
        v.clear();
        v.push_back(a[i]); 
        upd(a[i], a[i]);
      } else {
        if (tt[v[0]] > a[i]) {
          ans++;
          v.clear();
          v.push_back(a[i]); 
          upd(a[i], a[i]); 
        } else {
          v.push_back(a[i]); 
          upd(v[0], a[i]); 
        }
      }
    }
  }
  cout << ans << '\n';
  return 0;
}

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