oj.uz

답안 #645727

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
645727 2022-09-27T18:04:28 Z rainboy Fish 2 (JOI22_fish2) C
25 / 100
 4000 ms 3968 KB 
#include <stdio.h>
#include <string.h>

#define N	100000
#define N_	(1 << 17)	/* N_ = pow2(ceil(log2(N + 1))) */
#define INF	0x7fffffff
#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], st1[N_ * 2], st2[N_ * 2], kk2[N_ * 2], lz2[N_], h_, n_;

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

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, int 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, int 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:162:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  162 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
fish2.c:164:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  164 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
fish2.c:166:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  166 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
fish2.c:174:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  174 |   scanf("%d", &t);
      |   ^~~~~~~~~~~~~~~
fish2.c:176:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  176 |    scanf("%d%d", &i, &a), i--;
      |    ^~~~~~~~~~~~~~~~~~~~~
fish2.c:195:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  195 |    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 336 KB Output is correct
6 Correct 15 ms 332 KB Output is correct
7 Correct 11 ms 336 KB Output is correct
8 Correct 21 ms 332 KB Output is correct
9 Correct 19 ms 212 KB Output is correct
10 Correct 3 ms 212 KB Output is correct
11 Correct 4 ms 340 KB Output is correct
12 Correct 5 ms 212 KB Output is correct
13 Correct 12 ms 336 KB Output is correct
14 Correct 4 ms 212 KB Output is correct
15 Correct 8 ms 212 KB Output is correct
16 Correct 9 ms 212 KB Output is correct
17 Correct 6 ms 212 KB Output is correct
18 Correct 13 ms 332 KB Output is correct
19 Correct 5 ms 212 KB Output is correct
20 Correct 6 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 63 ms 3524 KB Output is correct
3 Correct 65 ms 3584 KB Output is correct
4 Correct 64 ms 3528 KB Output is correct
5 Correct 63 ms 3472 KB Output is correct
6 Correct 56 ms 3456 KB Output is correct
7 Correct 46 ms 3532 KB Output is correct
8 Correct 50 ms 3404 KB Output is correct
9 Correct 46 ms 3612 KB Output is correct
10 Correct 54 ms 3560 KB Output is correct
11 Correct 54 ms 3576 KB Output is correct
12 Correct 50 ms 3492 KB Output is correct
13 Correct 48 ms 3552 KB Output is correct
14 Correct 56 ms 3448 KB Output is correct
15 Correct 57 ms 3488 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 336 KB Output is correct
6 Correct 15 ms 332 KB Output is correct
7 Correct 11 ms 336 KB Output is correct
8 Correct 21 ms 332 KB Output is correct
9 Correct 19 ms 212 KB Output is correct
10 Correct 3 ms 212 KB Output is correct
11 Correct 4 ms 340 KB Output is correct
12 Correct 5 ms 212 KB Output is correct
13 Correct 12 ms 336 KB Output is correct
14 Correct 4 ms 212 KB Output is correct
15 Correct 8 ms 212 KB Output is correct
16 Correct 9 ms 212 KB Output is correct
17 Correct 6 ms 212 KB Output is correct
18 Correct 13 ms 332 KB Output is correct
19 Correct 5 ms 212 KB Output is correct
20 Correct 6 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 63 ms 3524 KB Output is correct
23 Correct 65 ms 3584 KB Output is correct
24 Correct 64 ms 3528 KB Output is correct
25 Correct 63 ms 3472 KB Output is correct
26 Correct 56 ms 3456 KB Output is correct
27 Correct 46 ms 3532 KB Output is correct
28 Correct 50 ms 3404 KB Output is correct
29 Correct 46 ms 3612 KB Output is correct
30 Correct 54 ms 3560 KB Output is correct
31 Correct 54 ms 3576 KB Output is correct
32 Correct 50 ms 3492 KB Output is correct
33 Correct 48 ms 3552 KB Output is correct
34 Correct 56 ms 3448 KB Output is correct
35 Correct 57 ms 3488 KB Output is correct
36 Correct 105 ms 3668 KB Output is correct
37 Correct 148 ms 3620 KB Output is correct
38 Correct 131 ms 3684 KB Output is correct
39 Correct 98 ms 3564 KB Output is correct
40 Correct 137 ms 3692 KB Output is correct
41 Correct 60 ms 3488 KB Output is correct
42 Correct 62 ms 3576 KB Output is correct
43 Correct 110 ms 3676 KB Output is correct
44 Correct 123 ms 3652 KB Output is correct
45 Correct 105 ms 3596 KB Output is correct
46 Correct 90 ms 3660 KB Output is correct
47 Correct 107 ms 3688 KB Output is correct
48 Correct 94 ms 3696 KB Output is correct
49 Correct 128 ms 3684 KB Output is correct
50 Correct 67 ms 3632 KB Output is correct
51 Correct 72 ms 3616 KB Output is correct
52 Correct 75 ms 3596 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 63 ms 3524 KB Output is correct
3 Correct 65 ms 3584 KB Output is correct
4 Correct 64 ms 3528 KB Output is correct
5 Correct 63 ms 3472 KB Output is correct
6 Correct 56 ms 3456 KB Output is correct
7 Correct 46 ms 3532 KB Output is correct
8 Correct 50 ms 3404 KB Output is correct
9 Correct 46 ms 3612 KB Output is correct
10 Correct 54 ms 3560 KB Output is correct
11 Correct 54 ms 3576 KB Output is correct
12 Correct 50 ms 3492 KB Output is correct
13 Correct 48 ms 3552 KB Output is correct
14 Correct 56 ms 3448 KB Output is correct
15 Correct 57 ms 3488 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4066 ms 3968 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 212 KB Output is correct
2 Correct 63 ms 3524 KB Output is correct
3 Correct 65 ms 3584 KB Output is correct
4 Correct 64 ms 3528 KB Output is correct
5 Correct 63 ms 3472 KB Output is correct
6 Correct 56 ms 3456 KB Output is correct
7 Correct 46 ms 3532 KB Output is correct
8 Correct 50 ms 3404 KB Output is correct
9 Correct 46 ms 3612 KB Output is correct
10 Correct 54 ms 3560 KB Output is correct
11 Correct 54 ms 3576 KB Output is correct
12 Correct 50 ms 3492 KB Output is correct
13 Correct 48 ms 3552 KB Output is correct
14 Correct 56 ms 3448 KB Output is correct
15 Correct 57 ms 3488 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4061 ms 3844 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 336 KB Output is correct
6 Correct 15 ms 332 KB Output is correct
7 Correct 11 ms 336 KB Output is correct
8 Correct 21 ms 332 KB Output is correct
9 Correct 19 ms 212 KB Output is correct
10 Correct 3 ms 212 KB Output is correct
11 Correct 4 ms 340 KB Output is correct
12 Correct 5 ms 212 KB Output is correct
13 Correct 12 ms 336 KB Output is correct
14 Correct 4 ms 212 KB Output is correct
15 Correct 8 ms 212 KB Output is correct
16 Correct 9 ms 212 KB Output is correct
17 Correct 6 ms 212 KB Output is correct
18 Correct 13 ms 332 KB Output is correct
19 Correct 5 ms 212 KB Output is correct
20 Correct 6 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 63 ms 3524 KB Output is correct
23 Correct 65 ms 3584 KB Output is correct
24 Correct 64 ms 3528 KB Output is correct
25 Correct 63 ms 3472 KB Output is correct
26 Correct 56 ms 3456 KB Output is correct
27 Correct 46 ms 3532 KB Output is correct
28 Correct 50 ms 3404 KB Output is correct
29 Correct 46 ms 3612 KB Output is correct
30 Correct 54 ms 3560 KB Output is correct
31 Correct 54 ms 3576 KB Output is correct
32 Correct 50 ms 3492 KB Output is correct
33 Correct 48 ms 3552 KB Output is correct
34 Correct 56 ms 3448 KB Output is correct
35 Correct 57 ms 3488 KB Output is correct
36 Correct 105 ms 3668 KB Output is correct
37 Correct 148 ms 3620 KB Output is correct
38 Correct 131 ms 3684 KB Output is correct
39 Correct 98 ms 3564 KB Output is correct
40 Correct 137 ms 3692 KB Output is correct
41 Correct 60 ms 3488 KB Output is correct
42 Correct 62 ms 3576 KB Output is correct
43 Correct 110 ms 3676 KB Output is correct
44 Correct 123 ms 3652 KB Output is correct
45 Correct 105 ms 3596 KB Output is correct
46 Correct 90 ms 3660 KB Output is correct
47 Correct 107 ms 3688 KB Output is correct
48 Correct 94 ms 3696 KB Output is correct
49 Correct 128 ms 3684 KB Output is correct
50 Correct 67 ms 3632 KB Output is correct
51 Correct 72 ms 3616 KB Output is correct
52 Correct 75 ms 3596 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Execution timed out 4066 ms 3968 KB Time limit exceeded
55 Halted 0 ms 0 KB -