제출 #328747

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
328747		luciocf	Hiring (IOI09_hiring)	C++14	45 / 100	256 ms	5600 KiB

hiring

#include <bits/stdc++.h>

#define ff first
#define ss second

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

const int maxn = 5e5+10;

int n;
ll w;

pii a[maxn];

bool comp(pii a, pii b)
{
	return a.ff*b.ss < b.ff*a.ss;
}

int main(void)
{
	scanf("%d %lld", &n, &w);

	for (int i = 1; i <= n; i++)
		scanf("%d %d", &a[i].ff, &a[i].ss);

	sort(a+1, a+n+1, comp);

	int ans = 0;

	priority_queue<int> fila;
	ll soma = 0;

	for (int i = 1; i <= n; i++)
	{
		if (a[i].ff > w) continue;

		soma += 1ll*a[i].ss;

		while (1ll*a[i].ff*soma > 1ll*w*a[i].ss)
		{
			soma -= 1ll*fila.top();
			fila.pop();
		}

		fila.push(a[i].ss);
		ans = max(ans, (int)fila.size());
	}

	printf("%d\n", ans);

	for (int i = 1; i <= ans; i++)
		printf("1\n");
}

컴파일 시 표준 에러 (stderr) 메시지

hiring.cpp: In function 'int main()':
hiring.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |  scanf("%d %lld", &n, &w);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
hiring.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   28 |   scanf("%d %d", &a[i].ff, &a[i].ss);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 30
• Subtask 2: 12 / 28
• Subtask 3: 3 / 6
• Subtask 4: 3 / 6
• Subtask 5: 3 / 6
• Subtask 6: 0 / 6
• Subtask 7: 3 / 6
• Subtask 8: 3 / 6
• Subtask 9: 3 / 6