Submission #683894

#	Time	Username	Problem	Language	Result	Execution time	Memory
683894		onlk97	Money (IZhO17_money)	C++14	100 / 100	950 ms	58008 KiB

money

#include <bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n; cin>>n;
    int a[n+1];
    for (int i=1; i<=n; i++) cin>>a[i];
    int wh=n+1;
    for (int i=2; i<=n; i++){
        if (a[i-1]>a[i]){
            wh=i;
            break;
        }
    }
    int ans=1;
    set <int> s;
    for (int i=1; i<wh; i++) s.insert(a[i]);
    for (int i=wh; i<=n; i++){
        auto it=s.lower_bound(a[i]+1);
        int mx;
        if (it==s.end()) mx=1e9;
        else mx=(*it);
        ans++;
        bool ok=0;
        for (int j=i+1; j<=n; j++){
            if (a[j-1]>a[j]||a[j]>mx){
                for (int k=i; k<j; k++) s.insert(a[k]);
                i=j-1;
                ok=1;
                break;
            }
        }
        if (!ok) break;
    }
    cout<<ans<<'\n';
}

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