oj.uz

답안 #381245

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
381245 2021-03-24T22:53:43 Z rainboy 새 집 (APIO18_new_home) C
57 / 100
 5000 ms 200656 KB 
#include <stdio.h>
#include <stdlib.h>
 
#define N	300000
#define Q	300000
#define L_	19	/* L_ = ceil(log2(Q)) */
#define N_	(1 << L_)
#define INF	0x3f3f3f3f
 
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
 
unsigned int X = 12345;
 
int rand_() {
	return (X *= 3) >> 1;
}
 
int xx[N], gg[N], n;
int yy[Q], yy_[Q], tt_[Q], tt1[Q], q_;
 
int compareh_y(int h1, int h2) {
	return yy[h1] - yy[h2];
}
 
int compareh_t(int h1, int h2) {
	return tt_[h1] - tt_[h2];
}
 
int compare_i(int i, int j) {
	return gg[i] != gg[j] ? gg[i] - gg[j] : xx[i] - xx[j];
}
 
int (*compare)(int, int);
 
void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;
 
		while (j < k) {
			int c = compare(ii[j], i_);
 
			if (c == 0)
				j++;
			else if (c < 0) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		}
		sort(ii, l, i);
		l = k;
	}
}
 
int idx(int *xx, int x) {
	int lower = -1, upper = q_;
 
	while (upper - lower > 1) {
		int h = (lower + upper) / 2;
 
		if (xx[h] <= x)
			lower = h;
		else
			upper = h;
	}
	return lower;
}
 
int stmn[N_ * 2], stmx[N_ * 2], *ei[N_ * 2], eo[N_ * 2], n_;
char upd[L_ + 2][N_ * 2]; int qu[L_ + 2][N_ * 2], cnt[L_ + 2];
int oldmn[L_ + 2][N_ * 2], oldmx[L_ + 2][N_ * 2];
 
void push(int i, int x, int t) {
	if (!upd[t][i]) {
		upd[t][i] = 1, qu[t][cnt[t]++] = i;
		oldmn[t][i] = stmn[i], oldmx[t][i] = stmx[i];
	}
	stmn[i] = min(stmn[i], x);
	stmx[i] = max(stmx[i], x);
}
 
void pop(int t) {
	while (cnt[t]--) {
		int i = qu[t][cnt[t]];

		upd[t][i] = 0;
		stmn[i] = oldmn[t][i], stmx[i] = oldmx[t][i];
	}
	cnt[t] = 0;
}

void build() {
	int i;
 
	n_ = 1;
	while (n_ < q_)
		n_ <<= 1;
	for (i = 1; i < n_ * 2; i++)
		stmn[i] = INF, stmx[i] = -INF;
	for (i = 1; i < n_ * 2; i++)
		ei[i] = (int *) malloc(2 * sizeof *ei[i]);
}
 
void update(int l, int r, int x, int t) {
	for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			push(l++, x, t);
		if ((r & 1) == 0)
			push(r--, x, t);
	}
}
 
int query(int i) {
	int y, l, r;
 
	l = r = y = yy_[i];
	for (i += n_; i > 0; i >>= 1)
		l = min(l, stmn[i]), r = max(r, stmx[i]);
	return l == -INF || r == INF ? -1 : max(y - l, r - y);
}
 
int mid(int a, int b) {
	return a + b > 0 ? (a + b) / 2 : -(-a + b + 1) / 2;
}
 
int pp[N], qq[N];
 
void remove_(int i, int t) {
	int p = pp[i], q = qq[i];
 
	if (p != -1)
		qq[p] = q;
	if (q != -1)
		pp[q] = p;
	if (p == -1 && q == -1)
		update(0, q_ - 1, INF, t), update(0, q_ - 1, -INF, t);
	else if (p == -1)
		update(0, idx(yy_, xx[q]), xx[q], t);
	else if (q == -1)
		update(idx(yy_, xx[p] - 1) + 1, q_ - 1, xx[p], t);
	else {
		int l = idx(yy_, xx[p] - 1) + 1, h = idx(yy_, mid(xx[p], xx[q])), r = idx(yy_, xx[q]);
 
		update(l, h, xx[p], t), update(h + 1, r, xx[q], t);
	}
}
 
void add(int i) {
	int p = pp[i], q = qq[i];
 
	if (p != -1)
		qq[p] = i;
	if (q != -1)
		pp[q] = i;
}
 
void append_(int i, int i_) {
	int o = eo[i]++;
 
	if (o >= 2 && (o & o - 1) == 0)
		ei[i] = (int *) realloc(ei[i], o * 2 * sizeof *ei[i]);
	ei[i][o] = i_;
}
 
void update_(int l, int r, int i_) {
	for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			append_(l++, i_);
		if ((r & 1) == 0)
			append_(r--, i_);
	}
}
 
int hh[Q], inv[Q], ans[Q];
 
void solve(int i, int t) {
	int o;
 
	for (o = eo[i]; o--; ) {
		int i_ = ei[i][o];
 
		remove_(i_, t);
	}
	if (i >= n_) {
		int h = i - n_;
 
		if (h < q_)
			ans[hh[h]] = query(inv[hh[h]]);
	} else
		solve(i << 1 | 0, t + 1), solve(i << 1 | 1, t + 1);
	for (o = 0; o < eo[i]; o++) {
		int i_ = ei[i][o];
 
		add(i_);
	}
	pop(t);
}
 
int main() {
	static int tt[N * 2], ii[N], ll[N], rr[N];
	static char used[N];
	int k, g, h, i;
 
	scanf("%d%d%d", &n, &k, &q_);
	for (i = 0; i < n; i++) {
		scanf("%d%d%d%d", &xx[i], &gg[i], &tt[i << 1 | 0], &tt[i << 1 | 1]), gg[i]--;
		used[gg[i]] = 1;
	}
	for (g = 0; g < k; g++)
		if (!used[g]) {
			for (h = 0; h < q_; h++)
				printf("-1\n");
			return 0;
		}
	for (h = 0; h < q_; h++)
		scanf("%d%d", &yy[h], &tt_[h]);
	for (h = 0; h < q_; h++)
		hh[h] = h;
	compare = compareh_y, sort(hh, 0, q_);
	for (h = 0; h < q_; h++)
		yy_[h] = yy[hh[h]], inv[hh[h]] = h;
	for (i = 0; i < n; i++)
		ii[i] = i;
	compare = compare_i, sort(ii, 0, n);
	pp[ii[0]] = -1, qq[ii[n - 1]] = -1;
	ll[0] = 0, rr[n - 1] = q_ - 1;
	for (h = 0; h + 1 < n; h++)
		if (gg[ii[h]] == gg[ii[h + 1]]) {
			int h_ = idx(yy_, mid(xx[ii[h]], xx[ii[h + 1]]));
 
			qq[ii[h]] = ii[h + 1], pp[ii[h + 1]] = ii[h];
			rr[h] = h_, ll[h + 1] = h_ + 1;
		} else {
			qq[ii[h]] = -1, pp[ii[h + 1]] = -1;
			rr[h] = q_ - 1, ll[h + 1] = 0;
		}
	build();
	for (h = 0; h < n; h++)
		if (ll[h] <= rr[h])
			update(ll[h], rr[h], xx[ii[h]], 0);
	compare = compareh_t, sort(hh, 0, q_);
	for (h = 0; h < q_; h++)
		tt1[h] = tt_[hh[h]];
	for (i = 0; i < n; i++)
		update_(0, idx(tt1, tt[i << 1 | 0] - 1), i), update_(idx(tt1, tt[i << 1 | 1]) + 1, q_ - 1, i);
	solve(1, 1);
	for (h = 0; h < q_; h++)
		printf("%d\n", ans[h]);
	return 0;
}

Compilation message

new_home.c: In function 'append_':
new_home.c:163:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  163 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
new_home.c: In function 'main':
new_home.c:207:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  207 |  scanf("%d%d%d", &n, &k, &q_);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.c:209:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  209 |   scanf("%d%d%d%d", &xx[i], &gg[i], &tt[i << 1 | 0], &tt[i << 1 | 1]), gg[i]--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.c:219:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  219 |   scanf("%d%d", &yy[h], &tt_[h]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 620 KB Output is correct
5 Correct 2 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 2 ms 748 KB Output is correct
8 Correct 3 ms 896 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 3 ms 876 KB Output is correct
11 Correct 3 ms 876 KB Output is correct
12 Correct 3 ms 876 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 3 ms 876 KB Output is correct
15 Correct 3 ms 876 KB Output is correct
16 Correct 2 ms 876 KB Output is correct
17 Correct 3 ms 876 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 876 KB Output is correct
20 Correct 3 ms 876 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 876 KB Output is correct
24 Correct 3 ms 876 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 3 ms 876 KB Output is correct
27 Correct 3 ms 876 KB Output is correct
28 Correct 3 ms 876 KB Output is correct
29 Correct 3 ms 876 KB Output is correct
30 Correct 2 ms 876 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 620 KB Output is correct
5 Correct 2 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 2 ms 748 KB Output is correct
8 Correct 3 ms 896 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 3 ms 876 KB Output is correct
11 Correct 3 ms 876 KB Output is correct
12 Correct 3 ms 876 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 3 ms 876 KB Output is correct
15 Correct 3 ms 876 KB Output is correct
16 Correct 2 ms 876 KB Output is correct
17 Correct 3 ms 876 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 876 KB Output is correct
20 Correct 3 ms 876 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 876 KB Output is correct
24 Correct 3 ms 876 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 3 ms 876 KB Output is correct
27 Correct 3 ms 876 KB Output is correct
28 Correct 3 ms 876 KB Output is correct
29 Correct 3 ms 876 KB Output is correct
30 Correct 2 ms 876 KB Output is correct
31 Correct 1266 ms 37228 KB Output is correct
32 Correct 462 ms 23148 KB Output is correct
33 Correct 1063 ms 37960 KB Output is correct
34 Correct 1312 ms 38220 KB Output is correct
35 Correct 1236 ms 37484 KB Output is correct
36 Correct 983 ms 37200 KB Output is correct
37 Correct 815 ms 37484 KB Output is correct
38 Correct 688 ms 37228 KB Output is correct
39 Correct 622 ms 37100 KB Output is correct
40 Correct 622 ms 36972 KB Output is correct
41 Correct 1048 ms 38380 KB Output is correct
42 Correct 1053 ms 38500 KB Output is correct
43 Correct 71 ms 10988 KB Output is correct
44 Correct 1090 ms 38480 KB Output is correct
45 Correct 1093 ms 38508 KB Output is correct
46 Correct 1073 ms 38328 KB Output is correct
47 Correct 548 ms 35940 KB Output is correct
48 Correct 534 ms 35820 KB Output is correct
49 Correct 615 ms 36780 KB Output is correct
50 Correct 651 ms 37228 KB Output is correct
51 Correct 640 ms 36588 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 810 ms 78000 KB Output is correct
2 Correct 694 ms 76780 KB Output is correct
3 Correct 640 ms 71404 KB Output is correct
4 Correct 791 ms 77908 KB Output is correct
5 Correct 668 ms 75284 KB Output is correct
6 Correct 683 ms 76392 KB Output is correct
7 Correct 609 ms 71428 KB Output is correct
8 Correct 698 ms 78060 KB Output is correct
9 Correct 756 ms 78180 KB Output is correct
10 Correct 727 ms 77420 KB Output is correct
11 Correct 561 ms 76908 KB Output is correct
12 Correct 603 ms 77548 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5075 ms 200656 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 620 KB Output is correct
5 Correct 2 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 2 ms 748 KB Output is correct
8 Correct 3 ms 896 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 3 ms 876 KB Output is correct
11 Correct 3 ms 876 KB Output is correct
12 Correct 3 ms 876 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 3 ms 876 KB Output is correct
15 Correct 3 ms 876 KB Output is correct
16 Correct 2 ms 876 KB Output is correct
17 Correct 3 ms 876 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 876 KB Output is correct
20 Correct 3 ms 876 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 876 KB Output is correct
24 Correct 3 ms 876 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 3 ms 876 KB Output is correct
27 Correct 3 ms 876 KB Output is correct
28 Correct 3 ms 876 KB Output is correct
29 Correct 3 ms 876 KB Output is correct
30 Correct 2 ms 876 KB Output is correct
31 Correct 1266 ms 37228 KB Output is correct
32 Correct 462 ms 23148 KB Output is correct
33 Correct 1063 ms 37960 KB Output is correct
34 Correct 1312 ms 38220 KB Output is correct
35 Correct 1236 ms 37484 KB Output is correct
36 Correct 983 ms 37200 KB Output is correct
37 Correct 815 ms 37484 KB Output is correct
38 Correct 688 ms 37228 KB Output is correct
39 Correct 622 ms 37100 KB Output is correct
40 Correct 622 ms 36972 KB Output is correct
41 Correct 1048 ms 38380 KB Output is correct
42 Correct 1053 ms 38500 KB Output is correct
43 Correct 71 ms 10988 KB Output is correct
44 Correct 1090 ms 38480 KB Output is correct
45 Correct 1093 ms 38508 KB Output is correct
46 Correct 1073 ms 38328 KB Output is correct
47 Correct 548 ms 35940 KB Output is correct
48 Correct 534 ms 35820 KB Output is correct
49 Correct 615 ms 36780 KB Output is correct
50 Correct 651 ms 37228 KB Output is correct
51 Correct 640 ms 36588 KB Output is correct
52 Correct 271 ms 17516 KB Output is correct
53 Correct 281 ms 17108 KB Output is correct
54 Correct 771 ms 36204 KB Output is correct
55 Correct 774 ms 37228 KB Output is correct
56 Correct 638 ms 36460 KB Output is correct
57 Correct 963 ms 37612 KB Output is correct
58 Correct 794 ms 37868 KB Output is correct
59 Correct 666 ms 37228 KB Output is correct
60 Correct 974 ms 38124 KB Output is correct
61 Correct 73 ms 10988 KB Output is correct
62 Correct 241 ms 17132 KB Output is correct
63 Correct 549 ms 36972 KB Output is correct
64 Correct 664 ms 37100 KB Output is correct
65 Correct 894 ms 37996 KB Output is correct
66 Correct 1046 ms 38636 KB Output is correct
67 Correct 584 ms 30720 KB Output is correct

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 620 KB Output is correct
5 Correct 2 ms 876 KB Output is correct
6 Correct 3 ms 876 KB Output is correct
7 Correct 2 ms 748 KB Output is correct
8 Correct 3 ms 896 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 3 ms 876 KB Output is correct
11 Correct 3 ms 876 KB Output is correct
12 Correct 3 ms 876 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 3 ms 876 KB Output is correct
15 Correct 3 ms 876 KB Output is correct
16 Correct 2 ms 876 KB Output is correct
17 Correct 3 ms 876 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 876 KB Output is correct
20 Correct 3 ms 876 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 876 KB Output is correct
24 Correct 3 ms 876 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 3 ms 876 KB Output is correct
27 Correct 3 ms 876 KB Output is correct
28 Correct 3 ms 876 KB Output is correct
29 Correct 3 ms 876 KB Output is correct
30 Correct 2 ms 876 KB Output is correct
31 Correct 1266 ms 37228 KB Output is correct
32 Correct 462 ms 23148 KB Output is correct
33 Correct 1063 ms 37960 KB Output is correct
34 Correct 1312 ms 38220 KB Output is correct
35 Correct 1236 ms 37484 KB Output is correct
36 Correct 983 ms 37200 KB Output is correct
37 Correct 815 ms 37484 KB Output is correct
38 Correct 688 ms 37228 KB Output is correct
39 Correct 622 ms 37100 KB Output is correct
40 Correct 622 ms 36972 KB Output is correct
41 Correct 1048 ms 38380 KB Output is correct
42 Correct 1053 ms 38500 KB Output is correct
43 Correct 71 ms 10988 KB Output is correct
44 Correct 1090 ms 38480 KB Output is correct
45 Correct 1093 ms 38508 KB Output is correct
46 Correct 1073 ms 38328 KB Output is correct
47 Correct 548 ms 35940 KB Output is correct
48 Correct 534 ms 35820 KB Output is correct
49 Correct 615 ms 36780 KB Output is correct
50 Correct 651 ms 37228 KB Output is correct
51 Correct 640 ms 36588 KB Output is correct
52 Correct 810 ms 78000 KB Output is correct
53 Correct 694 ms 76780 KB Output is correct
54 Correct 640 ms 71404 KB Output is correct
55 Correct 791 ms 77908 KB Output is correct
56 Correct 668 ms 75284 KB Output is correct
57 Correct 683 ms 76392 KB Output is correct
58 Correct 609 ms 71428 KB Output is correct
59 Correct 698 ms 78060 KB Output is correct
60 Correct 756 ms 78180 KB Output is correct
61 Correct 727 ms 77420 KB Output is correct
62 Correct 561 ms 76908 KB Output is correct
63 Correct 603 ms 77548 KB Output is correct
64 Execution timed out 5075 ms 200656 KB Time limit exceeded
65 Halted 0 ms 0 KB -