제출 #474215

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
474215		nonsensenonsense1	새 집 (APIO18_new_home)	C++17	12 / 100	5071 ms	46552 KiB

new_home

#include <cstdio>
#include <set>
#include <algorithm>

const int N = 300000;

struct data {
	int x, t, tm;
	bool open;
	bool operator<(data arg) {
		return tm < arg.tm;
	}
} s[N << 1];

struct query {
	int x, tm, ind;
	bool operator<(query arg) {
		return tm < arg.tm;
	}
} q[N];

int n, k, m, size, ans[N];
std::multiset<int> cur[N];

int main() 
{
	scanf("%d%d%d", &n, &k, &m);
	for (int i = 0; i < n; ++i) {
		scanf("%d%d%d%d", &s[i << 1].x, &s[i << 1].t, &s[i << 1].tm, &s[i << 1 | 1].tm);
		s[i << 1 | 1].x = s[i << 1].x;
		s[i << 1 | 1].t = --s[i << 1].t;
		s[i << 1].open = true;
		s[i << 1 | 1].open = false;
		--s[i << 1].tm;
	}
	std::sort(s, s + (n << 1));
	for (int i = 0; i < m; ++i) {
		scanf("%d%d", &q[i].x, &q[i].tm);
		q[i].ind = i;
		--q[i].tm;
	}
	std::sort(q, q + m);
	std::multiset<int>::iterator it;
	for (int i = 0, j = 0; i < m; ++i) {
		while (j < n << 1 && s[j].tm <= q[i].tm) {
			if (s[j].open) cur[s[j].t].insert(s[j].x);
			else cur[s[j].t].erase(cur[s[j].t].find(s[j].x));
			++j;
		}
		for (int j = 0; j < k; ++j) {
			it = cur[j].lower_bound(q[i].x);
			int dist = ~(1 << 31);
			if (it != cur[j].end()) dist = std::min(dist, *it - q[i].x);
			if (it != cur[j].begin()) dist = std::min(dist, q[i].x - *prev(it));
			ans[q[i].ind] = std::max(ans[q[i].ind], dist);
		}
	}
	for (int i = 0; i < m; ++i) {
		if (ans[i] == ~(1 << 31)) printf("-1\n");
		else printf("%d\n", ans[i]);
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

new_home.cpp: In function 'int main()':
new_home.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  scanf("%d%d%d", &n, &k, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   scanf("%d%d%d%d", &s[i << 1].x, &s[i << 1].t, &s[i << 1].tm, &s[i << 1 | 1].tm);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |   scanf("%d%d", &q[i].x, &q[i].tm);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20