oj.uz

답안 #482230

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
482230 2021-10-23T20:19:22 Z nonsensenonsense1 새 집 (APIO18_new_home) C++17
5 / 100
 5000 ms 12988 KB 
#include <cstdio>
#include <utility>
#include <algorithm>
#include <cstring>
#include <vector>

const int INF = 0x3f3f3f3f;

struct store {
	int x, t, l, r;
	bool operator<(store arg) {
		return x < arg.x;
	}
};

struct query {
	int l, y, ind;
	bool operator<(query arg) {
		return y < arg.y;
	}
};

bool cmp_l(query a, query b) 
{
	return a.l < b.l;
}

const int N = 300000;
const int K = 1;
int n, k, q, next[N + 1], type_amt[N], ans[N], it[N], fi[N], last[N], right[N], to[N];
bool ut[N], active[N];
store a[N + 1];
query qr[N];

int main() 
{
	scanf("%d%d%d", &n, &k, &q);
	a[n].x = INF;
	next[n] = n;
	memset(to, 0x3f, k << 2);
	for (int i = 0; i < n; ++i) {
		scanf("%d%d%d%d", &a[i].x, &a[i].t, &a[i].l, &a[i].r);
		--a[i].t;
		++a[i].r;
	}
	std::sort(a, a + n);
	for (int i = 0; i < q; ++i) {
		scanf("%d%d", &qr[i].l, &qr[i].y);
		qr[i].ind = i;
	}
	std::sort(qr, qr + q);
	for (int i = 0; i < q;) {
		memset(ut, 0, k);
		int until = std::min(i + K, q);
		std::vector<int> inter, inter_type;
		for (int j = 0; j < n; ++j) if (a[j].l >= qr[i].y + 1 && a[j].l <= qr[until - 1].y || a[j].r >= qr[i].y + 1 && a[j].r <= qr[until - 1].y) {
			if (!ut[a[j].t]) {
				inter_type.push_back(a[j].t);
				fi[a[j].t] = n;
			}
			ut[a[j].t] = 1;
			inter.push_back(j);
		}
		memset(last, -1, n << 2);
		for (int j = 0; j < n; ++j) {
			if (a[j].l <= qr[i].y && a[j].r > qr[until - 1].y) {
				if (ut[a[j].t]) {
					active[j] = false;
					if (last[a[j].t] == -1) fi[a[j].t] = j;
					else next[last[a[j].t]] = j;
					last[a[j].t] = j;
					next[j] = n;
				}
				else active[j] = true;
			}
			else active[j] = false;
		}
		memset(type_amt, 0, k << 2);
		for (int j = 0, l = 0, amt = 0; j < n; ++j) {
			while (l == j || l <= n && amt < k - inter_type.size()) {
				if (l < n && active[l]) {
					if (!type_amt[a[l].t]) ++amt;
					++type_amt[a[l].t];
				}
				++l;
			}
			right[j] = l;
			if (active[j]) {
				--type_amt[a[j].t];
				if (!type_amt[a[j].t]) --amt;
			}
		}
		std::sort(qr + i, qr + until, cmp_l);
		for (int j = 0; i < until; ++i) {
			while (qr[i].l - a[j].x > a[right[j] - 1].x - qr[i].l) ++j;
			int res = std::min(j ? qr[i].l - a[j - 1].x : INF, a[right[j] - 1].x - qr[i].l);
			for (int k = 0; k < (int)inter.size(); ++k) if (a[inter[k]].l <= qr[i].y && a[inter[k]].r > qr[i].y) to[a[inter[k]].t] = std::min(to[a[inter[k]].t], abs(qr[i].l - a[inter[k]].x));
			for (int k = 0; k < (int)inter_type.size(); ++k) {
				while (a[next[fi[inter_type[k]]]].x <= qr[i].l) fi[inter_type[k]] = next[fi[inter_type[k]]];
				res = std::max(res, std::min(to[inter_type[k]], std::min(fi[inter_type[k]] == n ? INF : qr[i].l - a[fi[inter_type[k]]].x, a[next[fi[inter_type[k]]]].x - qr[i].l)));
				to[inter_type[k]] = INF;
			}
			ans[qr[i].ind] = res > INF / 2 ? -1 : res;
		}
	}
	for (int i = 0; i < q; ++i) printf("%d\n", ans[i]);
	return 0;
}

Compilation message

new_home.cpp: In function 'int main()':
new_home.cpp:56:57: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   56 |   for (int j = 0; j < n; ++j) if (a[j].l >= qr[i].y + 1 && a[j].l <= qr[until - 1].y || a[j].r >= qr[i].y + 1 && a[j].r <= qr[until - 1].y) {
      |                                   ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:80:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |    while (l == j || l <= n && amt < k - inter_type.size()) {
      |                               ~~~~^~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:80:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   80 |    while (l == j || l <= n && amt < k - inter_type.size()) {
      |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:37:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |  scanf("%d%d%d", &n, &k, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:42:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |   scanf("%d%d%d%d", &a[i].x, &a[i].t, &a[i].l, &a[i].r);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:48:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |   scanf("%d%d", &qr[i].l, &qr[i].y);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 332 KB Output is correct
6 Correct 3 ms 404 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 332 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 3 ms 332 KB Output is correct
18 Correct 3 ms 332 KB Output is correct
19 Correct 3 ms 332 KB Output is correct
20 Correct 3 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Correct 3 ms 332 KB Output is correct
25 Correct 3 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 332 KB Output is correct
6 Correct 3 ms 404 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 332 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 3 ms 332 KB Output is correct
18 Correct 3 ms 332 KB Output is correct
19 Correct 3 ms 332 KB Output is correct
20 Correct 3 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Correct 3 ms 332 KB Output is correct
25 Correct 3 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Execution timed out 5054 ms 2652 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5054 ms 12988 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5070 ms 12348 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 332 KB Output is correct
6 Correct 3 ms 404 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 332 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 3 ms 332 KB Output is correct
18 Correct 3 ms 332 KB Output is correct
19 Correct 3 ms 332 KB Output is correct
20 Correct 3 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Correct 3 ms 332 KB Output is correct
25 Correct 3 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Execution timed out 5054 ms 2652 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 3 ms 332 KB Output is correct
6 Correct 3 ms 404 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 332 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Correct 3 ms 332 KB Output is correct
18 Correct 3 ms 332 KB Output is correct
19 Correct 3 ms 332 KB Output is correct
20 Correct 3 ms 332 KB Output is correct
21 Correct 3 ms 332 KB Output is correct
22 Correct 3 ms 332 KB Output is correct
23 Correct 3 ms 348 KB Output is correct
24 Correct 3 ms 332 KB Output is correct
25 Correct 3 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Execution timed out 5054 ms 2652 KB Time limit exceeded
32 Halted 0 ms 0 KB -