Submission #92670

#	Time	Username	Problem	Language	Result	Execution time	Memory
92670		GioChkhaidze	Money (IZhO17_money)	C++14	0 / 100	2 ms	376 KiB

money

#include <bits/stdc++.h>
using namespace std;
int n,a[1000006],f[1000006],fix[1000006],Ans;

set < int > st; 

void go(int x,int idx)
{
	int ko=0;
	Ans++;
	
	fix[idx]=1;
	
	st.insert(x);
	
	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;
			st.insert(a[i]);
			x=a[i];
		}
			else break;
	}
}

main ()
{
	ios::sync_with_stdio(false);
	
	cin>>n;
	
	for (int i=1; i<=n; i++)
	{
		cin>>a[i];
		f[a[i]]=i;
	}
		
	for (int i=1; i<=n; i++)
	{
		if (!fix[f[i]]) go(i,f[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

4 
2 2 2 2




*/

Compilation message (stderr)

money.cpp: In function 'void go(int, int)':
money.cpp:9:6: warning: unused variable 'ko' [-Wunused-variable]
  int ko=0;
      ^~
money.cpp: At global scope:
money.cpp:30:7: 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