제출 #91172

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
91172		davitmarg	Money (IZhO17_money)	C++17	45 / 100	1554 ms	51692 KiB

money

/*
DEATH-MATCH
Davit-Marg
*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <iterator>
#include <ctype.h>
#include <stdlib.h>  
#include <fstream>  
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
using namespace std;
int n,ans,a[1000006],l;
set<int> s;
stack<int> st;
set<int>::iterator it;
int main()
{
	cin >> n;
	ans = 1;
	for (int i = 1; i <= n; i++)
		scanf("%d", a+i);
	s.insert(0);
	for (int i = 1; i <= n; i++)
	{
		it = s.upper_bound(l);
		if ((a[i] < a[i - 1]) || it != s.end() && (*it) < a[i] )
		{
			l = a[i];
			ans++;
			while (!st.empty())
			{
				s.insert(st.top());
				st.pop();
			}
		}
		st.push(a[i]);
	}

	cout << ans << endl;
	return 0;
}

/*

6
1 3 5 2 4 6

*/

컴파일 시 표준 에러 (stderr) 메시지

money.cpp: In function 'int main()':
money.cpp:40:42: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if ((a[i] < a[i - 1]) || it != s.end() && (*it) < a[i] )
                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
money.cpp:35:8: 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: 0 / 55