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Submission #645697

# Submission time Handle Problem Language Result Execution time Memory
645697 2022-09-27T16:48:24 Z rainboy Fish 2 (JOI22_fish2) C
13 / 100
 4000 ms 6008 KB 
#include <stdio.h>
#include <string.h>

#define N	100000
#define N_	(1 << 17)	/* N_ = pow2(ceil(log2(N + 1))) */
#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; }

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

void pul1(int i) {
	int l = i << 1, r = l | 1;

	st1[i] = st1[l] + st1[r];
}

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];
	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;
}

int main() {
	static int aa[N];
	int n, q, i;

	scanf("%d", &n);
	for (i = 0; i < n; i++)
		scanf("%d", &aa[i]);
	build(aa, n);
	scanf("%d", &q);
	while (q--) {
		int t, a, l, r;

		scanf("%d", &t);
		if (t == 1) {
			scanf("%d%d", &i, &a), i--;
			aa[i] = a;
			update1(i, a);
		} else {
			int j;

			scanf("%d%d", &l, &r), l--, r--;
			memset(st2, 0, n_ * 2 * sizeof *st2);
			memset(kk2, 0, n_ * 2 * sizeof *kk2);
			memset(lz2, 0, n_ * sizeof *lz2);
			for (i = 0; i < n_; i++)
				kk2[n_ + i] = 1;
			for (i = n_ - 1; i > 0; i--)
				pul2(i);
			for (i = l; i <= r; i++) {
				j = max(queryl1(i - 1, aa[i]), l - 1);
				if (j < l || aa[j] > aa[i])
					update2(j + 1, i - 1, 1);
				j = min(queryr1(i + 1, aa[i]), r + 1);
				if (j > r || aa[j] >= aa[i])
					update2(i + 1, j - 1, 1);
			}
			printf("%d\n", query2(l, r));
		}
	}
	return 0;
}

Compilation message

fish2.c: In function 'main':
fish2.c:153:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  153 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
fish2.c:155:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  155 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
fish2.c:157:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  157 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
fish2.c:161:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  161 |   scanf("%d", &t);
      |   ^~~~~~~~~~~~~~~
fish2.c:163:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  163 |    scanf("%d%d", &i, &a), i--;
      |    ^~~~~~~~~~~~~~~~~~~~~
fish2.c:169:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  169 |    scanf("%d%d", &l, &r), l--, r--;
      |    ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 292 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 340 KB Output is correct
6 Correct 18 ms 212 KB Output is correct
7 Correct 6 ms 280 KB Output is correct
8 Correct 17 ms 212 KB Output is correct
9 Correct 29 ms 316 KB Output is correct
10 Correct 6 ms 340 KB Output is correct
11 Correct 17 ms 340 KB Output is correct
12 Correct 5 ms 340 KB Output is correct
13 Correct 24 ms 212 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 13 ms 340 KB Output is correct
16 Correct 23 ms 316 KB Output is correct
17 Correct 8 ms 340 KB Output is correct
18 Correct 19 ms 340 KB Output is correct
19 Correct 9 ms 340 KB Output is correct
20 Correct 44 ms 308 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 66 ms 5620 KB Output is correct
3 Correct 68 ms 5332 KB Output is correct
4 Correct 72 ms 5608 KB Output is correct
5 Correct 67 ms 5332 KB Output is correct
6 Correct 57 ms 6008 KB Output is correct
7 Correct 48 ms 5252 KB Output is correct
8 Correct 51 ms 5924 KB Output is correct
9 Correct 58 ms 5236 KB Output is correct
10 Correct 62 ms 5696 KB Output is correct
11 Correct 54 ms 5332 KB Output is correct
12 Correct 47 ms 5204 KB Output is correct
13 Correct 49 ms 5204 KB Output is correct
14 Correct 59 ms 5596 KB Output is correct
15 Correct 68 ms 5628 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 292 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 340 KB Output is correct
6 Correct 18 ms 212 KB Output is correct
7 Correct 6 ms 280 KB Output is correct
8 Correct 17 ms 212 KB Output is correct
9 Correct 29 ms 316 KB Output is correct
10 Correct 6 ms 340 KB Output is correct
11 Correct 17 ms 340 KB Output is correct
12 Correct 5 ms 340 KB Output is correct
13 Correct 24 ms 212 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 13 ms 340 KB Output is correct
16 Correct 23 ms 316 KB Output is correct
17 Correct 8 ms 340 KB Output is correct
18 Correct 19 ms 340 KB Output is correct
19 Correct 9 ms 340 KB Output is correct
20 Correct 44 ms 308 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 66 ms 5620 KB Output is correct
23 Correct 68 ms 5332 KB Output is correct
24 Correct 72 ms 5608 KB Output is correct
25 Correct 67 ms 5332 KB Output is correct
26 Correct 57 ms 6008 KB Output is correct
27 Correct 48 ms 5252 KB Output is correct
28 Correct 51 ms 5924 KB Output is correct
29 Correct 58 ms 5236 KB Output is correct
30 Correct 62 ms 5696 KB Output is correct
31 Correct 54 ms 5332 KB Output is correct
32 Correct 47 ms 5204 KB Output is correct
33 Correct 49 ms 5204 KB Output is correct
34 Correct 59 ms 5596 KB Output is correct
35 Correct 68 ms 5628 KB Output is correct
36 Execution timed out 4040 ms 5708 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 66 ms 5620 KB Output is correct
3 Correct 68 ms 5332 KB Output is correct
4 Correct 72 ms 5608 KB Output is correct
5 Correct 67 ms 5332 KB Output is correct
6 Correct 57 ms 6008 KB Output is correct
7 Correct 48 ms 5252 KB Output is correct
8 Correct 51 ms 5924 KB Output is correct
9 Correct 58 ms 5236 KB Output is correct
10 Correct 62 ms 5696 KB Output is correct
11 Correct 54 ms 5332 KB Output is correct
12 Correct 47 ms 5204 KB Output is correct
13 Correct 49 ms 5204 KB Output is correct
14 Correct 59 ms 5596 KB Output is correct
15 Correct 68 ms 5628 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Execution timed out 4059 ms 5460 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 66 ms 5620 KB Output is correct
3 Correct 68 ms 5332 KB Output is correct
4 Correct 72 ms 5608 KB Output is correct
5 Correct 67 ms 5332 KB Output is correct
6 Correct 57 ms 6008 KB Output is correct
7 Correct 48 ms 5252 KB Output is correct
8 Correct 51 ms 5924 KB Output is correct
9 Correct 58 ms 5236 KB Output is correct
10 Correct 62 ms 5696 KB Output is correct
11 Correct 54 ms 5332 KB Output is correct
12 Correct 47 ms 5204 KB Output is correct
13 Correct 49 ms 5204 KB Output is correct
14 Correct 59 ms 5596 KB Output is correct
15 Correct 68 ms 5628 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4062 ms 5716 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 292 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 340 KB Output is correct
6 Correct 18 ms 212 KB Output is correct
7 Correct 6 ms 280 KB Output is correct
8 Correct 17 ms 212 KB Output is correct
9 Correct 29 ms 316 KB Output is correct
10 Correct 6 ms 340 KB Output is correct
11 Correct 17 ms 340 KB Output is correct
12 Correct 5 ms 340 KB Output is correct
13 Correct 24 ms 212 KB Output is correct
14 Correct 5 ms 340 KB Output is correct
15 Correct 13 ms 340 KB Output is correct
16 Correct 23 ms 316 KB Output is correct
17 Correct 8 ms 340 KB Output is correct
18 Correct 19 ms 340 KB Output is correct
19 Correct 9 ms 340 KB Output is correct
20 Correct 44 ms 308 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 66 ms 5620 KB Output is correct
23 Correct 68 ms 5332 KB Output is correct
24 Correct 72 ms 5608 KB Output is correct
25 Correct 67 ms 5332 KB Output is correct
26 Correct 57 ms 6008 KB Output is correct
27 Correct 48 ms 5252 KB Output is correct
28 Correct 51 ms 5924 KB Output is correct
29 Correct 58 ms 5236 KB Output is correct
30 Correct 62 ms 5696 KB Output is correct
31 Correct 54 ms 5332 KB Output is correct
32 Correct 47 ms 5204 KB Output is correct
33 Correct 49 ms 5204 KB Output is correct
34 Correct 59 ms 5596 KB Output is correct
35 Correct 68 ms 5628 KB Output is correct
36 Execution timed out 4040 ms 5708 KB Time limit exceeded
37 Halted 0 ms 0 KB -