Submission #729880

#	Time	Username	Problem	Language	Result	Execution time	Memory
729880		NintsiChkhaidze	Money (IZhO17_money)	C++17	0 / 100	1 ms	340 KiB

money

#include <bits/stdc++.h>
#define pb push_back
#define tree int h,int l,int r
#define left (h<<1),l,(l+r)>>1
#define right ((h<<1)|1),((l+r)>>1) + 1,r
#define f first
#define s second
#define ll long long
using namespace std;

const int N = 1e6 + 5;
int a[N],fen[N];

void upd(int idx){
	while (idx <= 1000000){
		fen[idx] += 1;
		idx += (idx & (-idx));
	}
}
int get(int idx){
	int s = 0;
	while (idx){
		s += fen[idx];
		idx -= (idx & (-idx));
	}
	return s;
}
signed main (){
	ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
	
	int n;
	cin>>n;
	for (int i = 1; i <= n; i++)
		cin>>a[i];
		
	int l = 1,ans=0;
	while (l <= n){
		int r = l,mn = a[l],mx = a[l];
		while (r + 1 <= n){
			if (a[r + 1] < a[r]) break;
			int mn1 = min(mn,a[r + 1]),mx1 = max(mx,a[r + 1]);
			if (get(mx1) - get(mn1 - 1) > 0) break;
			r++;
		}
		for (int i = l; i <= r; i++) upd(a[i]);
		l = r + 1;
		++ans;
	}
	cout<<ans;
}

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