Submission #985841

#	Time	Username	Problem	Language	Result	Execution time	Memory
985841		irmuun	Money (IZhO17_money)	C++17	0 / 100	1 ms	600 KiB

money

#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    int n;
    cin>>n;
    int a[n+5];
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    set<int>st;
    st.insert(1e9+1);
    int ans=0;
    for(int i=1;i<=n;i++){
        if(i==1||a[i]<a[i-1]){
            ans++;
        }
        else{
            if(*st.upper_bound(a[i])!=*st.upper_bound(a[i-1])){
                ans++;
            }
        }
        st.insert(a[i]);
    }
    cout<<ans;
}

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