Submission #758297

#	Time	Username	Problem	Language	Result	Execution time	Memory
758297		haxorman	Money (IZhO17_money)	C++14	0 / 100	0 ms	212 KiB

money

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

const int mxN = 1e6 + 7;

int arr[mxN];

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    int n;
    cin >> n;

    for (int i = 0; i < n; ++i) {
        cin >> arr[i];
    }
    arr[n] = INT_MIN;
        
    int ans = 0, prv = 0;
    set<int> vals;
    for (int i = 1; i <= n; ++i) {
        vals.insert(arr[prv]);
        auto it1 = vals.upper_bound(arr[prv]);
        auto it2 = vals.lower_bound(arr[i]);
        
        if (arr[i - 1] > arr[i] || it1 != it2) {
            ++ans;
            prv = i;
        }
    }
    cout << ans << "\n";
}

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