oj.uz

답안 #645722

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
645722 2022-09-27T17:57:57 Z rainboy Fish 2 (JOI22_fish2) C
25 / 100
 4000 ms 5536 KB 
#include <stdio.h>
#include <string.h>

#define N	100000
#define N_	(1 << 17)	/* N_ = pow2(ceil(log2(N + 1))) */
#define INF	0x3f3f3f3f
#define LG	30

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

int aa[N];
long long st1[N_ * 2]; int st2[N_ * 2], kk2[N_ * 2], lz2[N_], h_, n_;

void pul1(int i) {
	st1[i] = st1[i << 1 | 0] + st1[i << 1 | 1];
}

void build(int *aa, int n) {
	int i;

	h_ = 0;
	while (1 << h_ <= n)
		h_++;
	n_ = 1 << h_;
	for (i = 0; i < n; i++)
		st1[n_ + i] = aa[i], kk2[n_ + i] = 1;
	for (i = n_ - 1; i > 0; i--)
		pul1(i);
}

void update1(int i, int a) {
	i += n_;
	st1[i] = a;
	while (i > 1)
		pul1(i >>= 1);
}

int queryl1(int r, long long s) {
	int l = 0;

	for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1)
		if ((r & 1) == 0) {
			if (s > st1[r])
				s -= st1[r--];
			else {
				while (r < n_)
					if (s <= st1[r << 1 | 1])
						r = r << 1 | 1;
					else
						s -= st1[r << 1 | 1], r = r << 1 | 0;
				return r - n_;
			}
		}
	return -1;
}

int queryr1(int l, long long s) {
	int r = n_ - 1;

	for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1)
		if ((l & 1) == 1) {
			if (s > st1[l])
				s -= st1[l++];
			else {
				while (l < n_)
					if (s <= st1[l << 1 | 0])
						l = l << 1 | 0;
					else
						s -= st1[l << 1 | 0], l = l << 1 | 1;
				return l - n_;
			}
		}
	return n_;
}

void put2(int i, int x) {
	st2[i] += x;
	if (i < n_)
		lz2[i] += x;
}

void pus2(int i) {
	if (lz2[i])
		put2(i << 1 | 0, lz2[i]), put2(i << 1 | 1, lz2[i]), lz2[i] = 0;
}

void pul2(int i) {
	if (!lz2[i]) {
		int l = i << 1, r = l | 1;

		if (st2[l] < st2[r])
			st2[i] = st2[l], kk2[i] = kk2[l];
		else if (st2[l] > st2[r])
			st2[i] = st2[r], kk2[i] = kk2[r];
		else
			st2[i] = st2[l], kk2[i] = kk2[l] + kk2[r];
	}
}

void push2(int i) {
	int h;

	for (h = h_; h > 0; h--)
		pus2(i >> h);
}

void pull2(int i) {
	while (i > 1)
		pul2(i >>= 1);
}

void update2(int l, int r, int x) {
	int l_ = l += n_, r_ = r += n_;

	push2(l_), push2(r_);
	for ( ; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			put2(l++, x);
		if ((r & 1) == 0)
			put2(r--, x);
	}
	pull2(l_), pull2(r_);
}

int query2(int l, int r) {
	int x = INF, k = 0;

	push2(l += n_), push2(r += n_);
	for ( ; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1) {
			if (x > st2[l])
				x = st2[l], k = 0;
			if (x == st2[l])
				k += kk2[l];
			l++;
		}
		if ((r & 1) == 0) {
			if (x > st2[r])
				x = st2[r], k = 0;
			if (x == st2[r])
				k += kk2[r];
			r--;
		}
	}
	return x == 0 ? k : 0;
}

void upd(int l, int r, int i, int x) {
	int j;

	j = max(queryl1(i - 1, aa[i]), l - 1);
	if (j < l || aa[j] > aa[i])
		update2(j + 1, i - 1, x);
	j = min(queryr1(i + 1, aa[i]), r + 1);
	if (j > r || aa[j] >= aa[i])
		update2(i + 1, j - 1, x);
}

int main() {
	int n, q, i, j;

	scanf("%d", &n);
	for (i = 0; i < n; i++)
		scanf("%d", &aa[i]);
	build(aa, n);
	scanf("%d", &q);
	for (i = 0; i < n; i++)
		upd(0, n - 1, i, 1);
	while (q--) {
		static char used[N];
		static int qu[N];
		int t, a, l, r, lg, cnt, h;

		scanf("%d", &t);
		if (t == 1) {
			scanf("%d%d", &i, &a), i--;
			cnt = 0;
			qu[cnt++] = i;
			for (lg = 0; lg <= LG; lg++) {
				j = queryl1(i - 1, 1 << lg);
				if (j >= 0 && !used[j])
					used[j] = 1, qu[cnt++] = j;
				j = queryr1(i + 1, 1 << lg);
				if (j < n && !used[j])
					used[j] = 1, qu[cnt++] = j;
			}
			for (h = 0; h < cnt; h++)
				upd(0, n - 1, qu[h], -1);
			aa[i] = a, update1(i, a);
			for (h = 0; h < cnt; h++)
				upd(0, n - 1, qu[h], 1);
			for (h = 0; h < cnt; h++)
				used[qu[h]] = 0;
		} else {
			scanf("%d%d", &l, &r), l--, r--;
			cnt = 0;
			for (lg = 0; lg <= LG; lg++) {
				j = queryl1(l - 1, 1 << lg);
				if (j >= 0 && !used[j])
					used[j] = 1, qu[cnt++] = j;
				j = queryr1(l, 1 << lg);
				if (j < n && !used[j])
					used[j] = 1, qu[cnt++] = j;
				j = queryl1(r, 1 << lg);
				if (j >= 0 && !used[j])
					used[j] = 1, qu[cnt++] = j;
				j = queryr1(r + 1, 1 << lg);
				if (j < n && !used[j])
					used[j] = 1, qu[cnt++] = j;
			}
			for (h = 0; h < cnt; h++) {
				upd(0, n - 1, qu[h], -1);
				if (l <= qu[h] && qu[h] <= r)
					upd(l, r, qu[h], 1);
			}
			printf("%d\n", query2(l, r));
			for (h = 0; h < cnt; h++) {
				if (l <= qu[h] && qu[h] <= r)
					upd(l, r, qu[h], -1);
				upd(0, n - 1, qu[h], 1);
			}
			for (h = 0; h < cnt; h++)
				used[qu[h]] = 0;
		}
	}
	return 0;
}

Compilation message

fish2.c: In function 'main':
fish2.c:163:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  163 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
fish2.c:165:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  165 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
fish2.c:167:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  167 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
fish2.c:175:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  175 |   scanf("%d", &t);
      |   ^~~~~~~~~~~~~~~
fish2.c:177:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  177 |    scanf("%d%d", &i, &a), i--;
      |    ^~~~~~~~~~~~~~~~~~~~~
fish2.c:196:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  196 |    scanf("%d%d", &l, &r), l--, r--;
      |    ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 10 ms 340 KB Output is correct
6 Correct 15 ms 348 KB Output is correct
7 Correct 12 ms 344 KB Output is correct
8 Correct 25 ms 348 KB Output is correct
9 Correct 19 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 6 ms 340 KB Output is correct
13 Correct 12 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 8 ms 340 KB Output is correct
16 Correct 9 ms 340 KB Output is correct
17 Correct 7 ms 340 KB Output is correct
18 Correct 13 ms 344 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 6 ms 340 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 65 ms 4384 KB Output is correct
3 Correct 77 ms 4688 KB Output is correct
4 Correct 78 ms 4432 KB Output is correct
5 Correct 66 ms 4400 KB Output is correct
6 Correct 51 ms 4300 KB Output is correct
7 Correct 49 ms 4412 KB Output is correct
8 Correct 52 ms 4336 KB Output is correct
9 Correct 48 ms 4428 KB Output is correct
10 Correct 57 ms 4492 KB Output is correct
11 Correct 55 ms 4460 KB Output is correct
12 Correct 48 ms 4416 KB Output is correct
13 Correct 48 ms 4484 KB Output is correct
14 Correct 54 ms 4328 KB Output is correct
15 Correct 64 ms 4376 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 10 ms 340 KB Output is correct
6 Correct 15 ms 348 KB Output is correct
7 Correct 12 ms 344 KB Output is correct
8 Correct 25 ms 348 KB Output is correct
9 Correct 19 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 6 ms 340 KB Output is correct
13 Correct 12 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 8 ms 340 KB Output is correct
16 Correct 9 ms 340 KB Output is correct
17 Correct 7 ms 340 KB Output is correct
18 Correct 13 ms 344 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 6 ms 340 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 65 ms 4384 KB Output is correct
23 Correct 77 ms 4688 KB Output is correct
24 Correct 78 ms 4432 KB Output is correct
25 Correct 66 ms 4400 KB Output is correct
26 Correct 51 ms 4300 KB Output is correct
27 Correct 49 ms 4412 KB Output is correct
28 Correct 52 ms 4336 KB Output is correct
29 Correct 48 ms 4428 KB Output is correct
30 Correct 57 ms 4492 KB Output is correct
31 Correct 55 ms 4460 KB Output is correct
32 Correct 48 ms 4416 KB Output is correct
33 Correct 48 ms 4484 KB Output is correct
34 Correct 54 ms 4328 KB Output is correct
35 Correct 64 ms 4376 KB Output is correct
36 Correct 107 ms 4488 KB Output is correct
37 Correct 145 ms 4968 KB Output is correct
38 Correct 137 ms 4944 KB Output is correct
39 Correct 104 ms 5068 KB Output is correct
40 Correct 139 ms 4896 KB Output is correct
41 Correct 69 ms 5472 KB Output is correct
42 Correct 64 ms 5416 KB Output is correct
43 Correct 109 ms 4768 KB Output is correct
44 Correct 125 ms 4772 KB Output is correct
45 Correct 108 ms 5092 KB Output is correct
46 Correct 90 ms 5068 KB Output is correct
47 Correct 109 ms 4772 KB Output is correct
48 Correct 87 ms 4812 KB Output is correct
49 Correct 131 ms 4816 KB Output is correct
50 Correct 70 ms 5148 KB Output is correct
51 Correct 75 ms 5068 KB Output is correct
52 Correct 73 ms 5116 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 65 ms 4384 KB Output is correct
3 Correct 77 ms 4688 KB Output is correct
4 Correct 78 ms 4432 KB Output is correct
5 Correct 66 ms 4400 KB Output is correct
6 Correct 51 ms 4300 KB Output is correct
7 Correct 49 ms 4412 KB Output is correct
8 Correct 52 ms 4336 KB Output is correct
9 Correct 48 ms 4428 KB Output is correct
10 Correct 57 ms 4492 KB Output is correct
11 Correct 55 ms 4460 KB Output is correct
12 Correct 48 ms 4416 KB Output is correct
13 Correct 48 ms 4484 KB Output is correct
14 Correct 54 ms 4328 KB Output is correct
15 Correct 64 ms 4376 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4048 ms 5536 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 65 ms 4384 KB Output is correct
3 Correct 77 ms 4688 KB Output is correct
4 Correct 78 ms 4432 KB Output is correct
5 Correct 66 ms 4400 KB Output is correct
6 Correct 51 ms 4300 KB Output is correct
7 Correct 49 ms 4412 KB Output is correct
8 Correct 52 ms 4336 KB Output is correct
9 Correct 48 ms 4428 KB Output is correct
10 Correct 57 ms 4492 KB Output is correct
11 Correct 55 ms 4460 KB Output is correct
12 Correct 48 ms 4416 KB Output is correct
13 Correct 48 ms 4484 KB Output is correct
14 Correct 54 ms 4328 KB Output is correct
15 Correct 64 ms 4376 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4030 ms 4636 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 10 ms 340 KB Output is correct
6 Correct 15 ms 348 KB Output is correct
7 Correct 12 ms 344 KB Output is correct
8 Correct 25 ms 348 KB Output is correct
9 Correct 19 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 5 ms 340 KB Output is correct
12 Correct 6 ms 340 KB Output is correct
13 Correct 12 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 8 ms 340 KB Output is correct
16 Correct 9 ms 340 KB Output is correct
17 Correct 7 ms 340 KB Output is correct
18 Correct 13 ms 344 KB Output is correct
19 Correct 4 ms 340 KB Output is correct
20 Correct 6 ms 340 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 65 ms 4384 KB Output is correct
23 Correct 77 ms 4688 KB Output is correct
24 Correct 78 ms 4432 KB Output is correct
25 Correct 66 ms 4400 KB Output is correct
26 Correct 51 ms 4300 KB Output is correct
27 Correct 49 ms 4412 KB Output is correct
28 Correct 52 ms 4336 KB Output is correct
29 Correct 48 ms 4428 KB Output is correct
30 Correct 57 ms 4492 KB Output is correct
31 Correct 55 ms 4460 KB Output is correct
32 Correct 48 ms 4416 KB Output is correct
33 Correct 48 ms 4484 KB Output is correct
34 Correct 54 ms 4328 KB Output is correct
35 Correct 64 ms 4376 KB Output is correct
36 Correct 107 ms 4488 KB Output is correct
37 Correct 145 ms 4968 KB Output is correct
38 Correct 137 ms 4944 KB Output is correct
39 Correct 104 ms 5068 KB Output is correct
40 Correct 139 ms 4896 KB Output is correct
41 Correct 69 ms 5472 KB Output is correct
42 Correct 64 ms 5416 KB Output is correct
43 Correct 109 ms 4768 KB Output is correct
44 Correct 125 ms 4772 KB Output is correct
45 Correct 108 ms 5092 KB Output is correct
46 Correct 90 ms 5068 KB Output is correct
47 Correct 109 ms 4772 KB Output is correct
48 Correct 87 ms 4812 KB Output is correct
49 Correct 131 ms 4816 KB Output is correct
50 Correct 70 ms 5148 KB Output is correct
51 Correct 75 ms 5068 KB Output is correct
52 Correct 73 ms 5116 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Execution timed out 4048 ms 5536 KB Time limit exceeded
55 Halted 0 ms 0 KB -