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Submission #829449

# Submission time Handle Problem Language Result Execution time Memory
829449 2023-08-18T10:51:03 Z rainboy Inspections (NOI23_inspections) C
100 / 100
 357 ms 36572 KB 
#include <stdio.h>

#define N	200000
#define M	200000
#define Q	200000
#define M_	(M * 3 + 2)
#define INF	0x3f3f3f3f3f3f3f3fLL

int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }

unsigned int Z = 12345;

int rand_() {
	return (Z *= 3) >> 1;
}

int zz[M_], ll[M_], rr[M_], ii[M_], jj[M_], u_, l_, r_; long long xx[M_];

int node(int l, int r, long long x) {
	static int _ = 1;

	zz[_] = rand_();
	ii[_] = l, jj[_] = r, xx[_] = x;
	return _++;
}

void split_i(int u, int i) {
	if (u == 0) {
		u_ = l_ = r_ = 0;
		return;
	}
	if (ii[u] <= i) {
		split_i(rr[u], i);
		rr[u] = l_, l_ = u;
	} else {
		split_i(ll[u], i);
		ll[u] = r_, r_ = u;
	}
}

void split_j(int u, int i) {
	if (u == 0) {
		u_ = l_ = r_ = 0;
		return;
	}
	if (jj[u] <= i) {
		split_j(rr[u], i);
		rr[u] = l_, l_ = u;
	} else {
		split_j(ll[u], i);
		ll[u] = r_, r_ = u;
	}
}

int merge(int u, int v) {
	if (u == 0)
		return v;
	if (v == 0)
		return u;
	if (zz[u] < zz[v]) {
		rr[u] = merge(rr[u], v);
		return u;
	} else {
		ll[v] = merge(u, ll[v]);
		return v;
	}
}

int first(int u) {
	return ll[u] == 0 ? u : first(ll[u]);
}

int last(int u) {
	return rr[u] == 0 ? u : last(rr[u]);
}

long long tt[M_]; int ww[M_], m_;

void add_segments(int u, int i, int j, long long x) {
	if (u == 0)
		return;
	add_segments(ll[u], i, j, x);
	tt[m_] = xx[u] == -INF ? 0 : x - xx[u], ww[m_] = max(min(j, jj[u]) - max(i, ii[u]) + 1, 0), m_++;
	add_segments(rr[u], i, j, x);
}

void sort(int *hh, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, h = hh[l + rand_() % (r - l)], tmp;

		while (j < k)
			if (tt[hh[j]] == tt[h])
				j++;
			else if (tt[hh[j]] < tt[h]) {
				tmp = hh[i], hh[i] = hh[j], hh[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = hh[j], hh[j] = hh[k], hh[k] = tmp;
			}
		sort(hh, l, i);
		l = k;
	}
}

int main() {
	static int hh[M_];
	static long long kk[M_ + 1];
	int n, m, q, h, i, j;
	long long k;

	scanf("%d%d%d", &n, &m, &q);
	k = 0, u_ = node(0, n - 1, -INF);
	while (m--) {
		int l, m, m_, r, u;

		scanf("%d%d", &i, &j), i--, j--;
		split_j(u_, i - 1), l = l_;
		split_i(r_, j), m = l_, r = r_;
		add_segments(m, i, j, k - i);
		m_ = node(i, j, k - i);
		if (ii[u = first(m)] < i)
			m_ = merge(node(ii[u], i - 1, xx[u]), m_);
		if (jj[u = last(m)] > j)
			m_ = merge(m_, node(j + 1, jj[u], xx[u]));
		u_ = merge(merge(l, m_), r);
		k += j - i + 1;
	}
	for (h = 0; h < m_; h++)
		hh[h] = h;
	sort(hh, 0, m_);
	kk[0] = k;
	for (h = 0; h < m_; h++)
		kk[h + 1] = kk[h] - ww[hh[h]];
	while (q--) {
		long long t;
		int lower, upper;

		scanf("%lld", &t);
		lower = -1, upper = m_;
		while (upper - lower > 1) {
			h = (lower + upper) / 2;
			if (tt[hh[h]] <= t)
				lower = h;
			else
				upper = h;
		}
		printf("%lld ", kk[upper]);
	}
	printf("\n");
	return 0;
}

Compilation message

Main.c: In function 'main':
Main.c:113:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  113 |  scanf("%d%d%d", &n, &m, &q);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:118:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  118 |   scanf("%d%d", &i, &j), i--, j--;
      |   ^~~~~~~~~~~~~~~~~~~~~
Main.c:140:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  140 |   scanf("%lld", &t);
      |   ^~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 288 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 284 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 288 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 284 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 50 ms 2528 KB Output is correct
14 Correct 47 ms 2228 KB Output is correct
15 Correct 51 ms 2432 KB Output is correct
16 Correct 49 ms 2588 KB Output is correct
17 Correct 50 ms 2508 KB Output is correct
18 Correct 51 ms 2468 KB Output is correct
19 Correct 63 ms 2660 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 51 ms 2428 KB Output is correct
4 Correct 51 ms 3040 KB Output is correct
5 Correct 192 ms 25592 KB Output is correct
6 Correct 168 ms 25228 KB Output is correct
7 Correct 164 ms 17680 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct

Subtask #4
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 288 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 284 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 50 ms 2528 KB Output is correct
14 Correct 47 ms 2228 KB Output is correct
15 Correct 51 ms 2432 KB Output is correct
16 Correct 49 ms 2588 KB Output is correct
17 Correct 50 ms 2508 KB Output is correct
18 Correct 51 ms 2468 KB Output is correct
19 Correct 63 ms 2660 KB Output is correct
20 Correct 57 ms 3716 KB Output is correct
21 Correct 48 ms 2984 KB Output is correct
22 Correct 59 ms 3660 KB Output is correct
23 Correct 55 ms 2568 KB Output is correct
24 Correct 48 ms 2428 KB Output is correct
25 Correct 50 ms 3064 KB Output is correct
26 Correct 58 ms 3608 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 288 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 284 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 50 ms 2528 KB Output is correct
14 Correct 47 ms 2228 KB Output is correct
15 Correct 51 ms 2432 KB Output is correct
16 Correct 49 ms 2588 KB Output is correct
17 Correct 50 ms 2508 KB Output is correct
18 Correct 51 ms 2468 KB Output is correct
19 Correct 63 ms 2660 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 51 ms 2428 KB Output is correct
23 Correct 51 ms 3040 KB Output is correct
24 Correct 192 ms 25592 KB Output is correct
25 Correct 168 ms 25228 KB Output is correct
26 Correct 164 ms 17680 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 57 ms 3716 KB Output is correct
30 Correct 48 ms 2984 KB Output is correct
31 Correct 59 ms 3660 KB Output is correct
32 Correct 55 ms 2568 KB Output is correct
33 Correct 48 ms 2428 KB Output is correct
34 Correct 50 ms 3064 KB Output is correct
35 Correct 58 ms 3608 KB Output is correct
36 Correct 305 ms 36244 KB Output is correct
37 Correct 261 ms 36572 KB Output is correct
38 Correct 226 ms 36224 KB Output is correct
39 Correct 144 ms 25420 KB Output is correct
40 Correct 206 ms 35824 KB Output is correct
41 Correct 214 ms 35012 KB Output is correct
42 Correct 203 ms 34712 KB Output is correct
43 Correct 186 ms 31564 KB Output is correct
44 Correct 188 ms 31516 KB Output is correct
45 Correct 243 ms 35696 KB Output is correct
46 Correct 357 ms 32548 KB Output is correct
47 Correct 300 ms 32716 KB Output is correct
48 Correct 219 ms 36532 KB Output is correct