Submission #839396

#	Time	Username	Problem	Language	Result	Execution time	Memory
839396		Darren0724	Money (IZhO17_money)	C++17	100 / 100	912 ms	61808 KiB

money

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int INF = 1e9;
set<int> s;
int bet(int a, int b) {
    auto it = s.upper_bound(a);
    return (it != s.end() && *it < b);
}
int32_t main() {
    int n;
    cin >> n;
    vector<int> v(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i];
    }
    int ans = 0;
    int j = 0;
    int mx = -INF, mn = INF;
    for (int i = 0; i < n; i++) {
        if (mx > v[i] || bet(mn, v[i])) {
            ans++;
            while (j <= i) {
                s.insert(v[j]);
                j++;
            }
            mn = INF;
            mx = -INF;
        }
        mx = max(mx, v[i]);
        mn = min(mn, v[i]);
    }
    ans++;
    cout << ans << endl;

    return 0;
}

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