Submission #92714

#	Time	Username	Problem	Language	Result	Execution time	Memory
92714		GioChkhaidze	Money (IZhO17_money)	C++14	100 / 100	1386 ms	55292 KiB

money

#include <bits/stdc++.h>
#define F first
#define S second
#define Pb push_back
using namespace std;
int n,a[1000006],fix[1000006],Ans,Ps;
 
pair < int , int > p [1000006]; 
 
vector < vector < pair < int , int > > > V;
vector < pair < int , int > > v,Z;
 
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]<a[i-1]) break;
		
		if (st.upper_bound(x)==st.end() || a[i]<=*st.upper_bound(x))
		{
			fix[i]=1;
			ID=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];
				
	for (int i=1; i<=n; i++)
	{
		if (!fix[i]) go(a[i],i);
		/*
		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
 
5
2 5 2 4 5


4
3 2 3 2 

*/

Compilation message (stderr)

money.cpp: In function 'void go(int, int)':
money.cpp:17:6: warning: unused variable 'ko' [-Wunused-variable]
  int ko=0,ID=idx;
      ^~
money.cpp: At global scope:
money.cpp:38:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main ()
       ^

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