Submission #93834

#	Time	Username	Problem	Language	Result	Execution time	Memory
93834		dalgerok	Money (IZhO17_money)	C++14	100 / 100	1391 ms	58104 KiB

money

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



const int N = 1e6 + 5;



int n, a[N], ans;
set < int > q;



int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    for(int i = 1; i <= n; i++){
        ans += 1;
        int j = i + 1;
        while(j <= n && a[j] >= a[j - 1]){
            auto it = q.upper_bound(a[i]);
            if(it == q.end() || a[j] <= *it){
                j += 1;
            }
            else{
                break;
            }
        }
        //cout << i << " " << j << "\n";
        for(int k = i; k < j; k++){
            q.insert(a[k]);
        }
        i = j;
        i -= 1;
    }
    cout << ans;
}

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