Submission #888371

#	Time	Username	Problem	Language	Result	Execution time	Memory
888371		pcc	Money (IZhO17_money)	C++14	100 / 100	842 ms	58624 KiB

money

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

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


const int mxn = 1e6+10;
multiset<int> st;
int arr[mxn];
int n;

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	for(int i = 1;i<=n;i++)cin>>arr[i];
	int ans = 0;
	st.insert(mxn);
	st.insert(0);
	for(int i = 1;i<=n;){
		int pt = i+1;
		vector<int> v = {arr[i]};
		while(pt<=n&&arr[pt]>=arr[pt-1]&&*st.lower_bound(arr[pt])<=*st.upper_bound(v[0])){
			v.push_back(arr[pt]);
			pt++;
		}
		ans++;
		//cout<<i<<":"<<pt<<' '<<*st.lower_bound(arr[pt])<<' '<<*st.upper_bound(v[0])<<endl;
		for(auto &j:v)st.insert(j);
		i = pt;
	}
	cout<<ans;
}

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