제출 #197578

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
197578		nafis_shifat	Money (IZhO17_money)	C++14	100 / 100	1440 ms	62132 KiB

money

#include<bits/stdc++.h>
#define pii pair<int,int>
#define ll long long
#define f first
#define s second
using namespace std;
int main()
{
//	freopen("input.txt","r",stdin);
	int n;
	cin>>n;
	int a[n+3];
	vector<pii> v;
	int l=1;
	a[0]=0;
	for(int i=1;i<=n;i++)
	{
		scanf("%d",&a[i]);

		if(a[i]<a[i-1])
		{
			v.push_back(make_pair(l,i-1));
			l=i;
		}

	}
	
	
	v.push_back(make_pair(l,n));
	

	


	set<int> st;
	st.insert(1e6+1);

	for(int i=1;i<=v[0].s;i++)st.insert(a[i]);
	int res=1;

	for(int i=1;i<v.size();i++)
	{
		int p=v[i].f;
		
		

		while(p<=v[i].s)
		{
			int val=*st.upper_bound(a[p]);
			while(a[p]<=val && p<=v[i].s)
			{
				st.insert(a[p]);
				p++;
			}
			res++;
		

		}
	}

	cout<<res<<endl;



	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

money.cpp: In function 'int main()':
money.cpp:41:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<v.size();i++)
              ~^~~~~~~~~
money.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~

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