Submission #92687

#	Time	Username	Problem	Language	Result	Execution time	Memory
92687		GioChkhaidze	Money (IZhO17_money)	C++14	0 / 100	2 ms	380 KiB

money

#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
int n,a[1000006],fix[1000006],Ans;

pair < int , int > p [1000006]; 

set < int > st; 

void go(int x,int idx)
{
	int ko=0,ID=idx;
	Ans++;
	
	fix[idx]=1;
	
	for (int i=idx+1; i<=n; i++)
	{
		if (a[i]<x) break;
		
		if (st.upper_bound(x)==st.end() || a[i]<=*st.upper_bound(x))
		{
			fix[i]=1;
			ID=i;
			x=a[i];
		}
			else break;
	}
	
	for (int i=idx; i<=ID; i++)
		st.insert(a[i]);
}

main ()
{
	ios::sync_with_stdio(false);
	
	cin>>n;
	
	for (int i=1; i<=n; i++)
	{
		cin>>a[i];
		p[i].F=a[i];
		p[i].S=-i;
	}
	
	sort(p+1,p+n+1);
		
	for (int i=1; i<=n; i++)
	{
		if (!fix[-p[i].S]) go(p[i].F,-p[i].S);
		/*
		for (int j=1; j<=n; j++)
			cout<<fix[j]<<" ";
		cout<<endl;*/
	}
		
	cout<<Ans<<endl;
}
/*

10
1 4 6 2 3 7 10 8 9 5
| 1 4 6 | 2 3 | 7 10 | 8 9 | 5 |

6
3 6 4 5 1 2

5 
1 3 5 2 4

8
1 3 2 4 5 8 7 6

5
2 3 5 3 5

4
2 2 2 2

5
2 4 5 2 5

*/

Compilation message (stderr)

money.cpp: In function 'void go(int, int)':
money.cpp:13:6: warning: unused variable 'ko' [-Wunused-variable]
  int ko=0,ID=idx;
      ^~
money.cpp: At global scope:
money.cpp:35:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ()
       ^

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