Submission #1015735

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015735		phoenix	Money (IZhO17_money)	C++17	0 / 100	0 ms	508 KiB

money

#include <bits/stdc++.h>

using namespace std;

const int N = 1'000'100;

int n;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;

    set<int> proceeded;
    vector<int> buffer; 
    int ans = 0;
    for (int i = 0; i < n; i++) {
        int a;
        cin >> a;
        if (buffer.empty() || buffer.back() > a || proceeded.lower_bound(buffer.back()) != proceeded.lower_bound(a)) {
            for (int c : buffer) {
                proceeded.insert(c);
            }
            buffer.clear();
            ans++;
        }
        buffer.push_back(a);
    }
    
    cout << ans;
}

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