oj.uz

Submission #645702

# Submission time Handle Problem Language Result Execution time Memory
645702 2022-09-27T17:01:21 Z rainboy Fish 2 (JOI22_fish2) C
13 / 100
 4000 ms 5464 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) {
	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];
		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 state[N];
		int t, a, l, r, lg;

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

Compilation message

fish2.c: In function 'main':
fish2.c:167:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  167 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
fish2.c:169:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  169 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
fish2.c:171:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  171 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
fish2.c:178:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  178 |   scanf("%d", &t);
      |   ^~~~~~~~~~~~~~~
fish2.c:180:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  180 |    scanf("%d%d", &i, &a), i--;
      |    ^~~~~~~~~~~~~~~~~~~~~
fish2.c:219:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  219 |    scanf("%d%d", &l, &r), l--, r--;
      |    ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory 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 212 KB Output is correct
6 Correct 37 ms 212 KB Output is correct
7 Correct 13 ms 332 KB Output is correct
8 Correct 36 ms 212 KB Output is correct
9 Correct 58 ms 308 KB Output is correct
10 Correct 12 ms 328 KB Output is correct
11 Correct 33 ms 308 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 41 ms 320 KB Output is correct
14 Correct 10 ms 336 KB Output is correct
15 Correct 24 ms 212 KB Output is correct
16 Correct 45 ms 308 KB Output is correct
17 Correct 16 ms 328 KB Output is correct
18 Correct 40 ms 212 KB Output is correct
19 Correct 17 ms 332 KB Output is correct
20 Correct 88 ms 316 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 170 ms 5212 KB Output is correct
3 Correct 182 ms 5036 KB Output is correct
4 Correct 171 ms 5016 KB Output is correct
5 Correct 175 ms 5032 KB Output is correct
6 Correct 125 ms 5068 KB Output is correct
7 Correct 120 ms 5028 KB Output is correct
8 Correct 123 ms 4940 KB Output is correct
9 Correct 120 ms 4916 KB Output is correct
10 Correct 142 ms 5068 KB Output is correct
11 Correct 141 ms 5008 KB Output is correct
12 Correct 124 ms 4976 KB Output is correct
13 Correct 124 ms 4964 KB Output is correct
14 Correct 138 ms 4968 KB Output is correct
15 Correct 146 ms 5088 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory 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 212 KB Output is correct
6 Correct 37 ms 212 KB Output is correct
7 Correct 13 ms 332 KB Output is correct
8 Correct 36 ms 212 KB Output is correct
9 Correct 58 ms 308 KB Output is correct
10 Correct 12 ms 328 KB Output is correct
11 Correct 33 ms 308 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 41 ms 320 KB Output is correct
14 Correct 10 ms 336 KB Output is correct
15 Correct 24 ms 212 KB Output is correct
16 Correct 45 ms 308 KB Output is correct
17 Correct 16 ms 328 KB Output is correct
18 Correct 40 ms 212 KB Output is correct
19 Correct 17 ms 332 KB Output is correct
20 Correct 88 ms 316 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 170 ms 5212 KB Output is correct
23 Correct 182 ms 5036 KB Output is correct
24 Correct 171 ms 5016 KB Output is correct
25 Correct 175 ms 5032 KB Output is correct
26 Correct 125 ms 5068 KB Output is correct
27 Correct 120 ms 5028 KB Output is correct
28 Correct 123 ms 4940 KB Output is correct
29 Correct 120 ms 4916 KB Output is correct
30 Correct 142 ms 5068 KB Output is correct
31 Correct 141 ms 5008 KB Output is correct
32 Correct 124 ms 4976 KB Output is correct
33 Correct 124 ms 4964 KB Output is correct
34 Correct 138 ms 4968 KB Output is correct
35 Correct 146 ms 5088 KB Output is correct
36 Execution timed out 4030 ms 5464 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 170 ms 5212 KB Output is correct
3 Correct 182 ms 5036 KB Output is correct
4 Correct 171 ms 5016 KB Output is correct
5 Correct 175 ms 5032 KB Output is correct
6 Correct 125 ms 5068 KB Output is correct
7 Correct 120 ms 5028 KB Output is correct
8 Correct 123 ms 4940 KB Output is correct
9 Correct 120 ms 4916 KB Output is correct
10 Correct 142 ms 5068 KB Output is correct
11 Correct 141 ms 5008 KB Output is correct
12 Correct 124 ms 4976 KB Output is correct
13 Correct 124 ms 4964 KB Output is correct
14 Correct 138 ms 4968 KB Output is correct
15 Correct 146 ms 5088 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4065 ms 5024 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 170 ms 5212 KB Output is correct
3 Correct 182 ms 5036 KB Output is correct
4 Correct 171 ms 5016 KB Output is correct
5 Correct 175 ms 5032 KB Output is correct
6 Correct 125 ms 5068 KB Output is correct
7 Correct 120 ms 5028 KB Output is correct
8 Correct 123 ms 4940 KB Output is correct
9 Correct 120 ms 4916 KB Output is correct
10 Correct 142 ms 5068 KB Output is correct
11 Correct 141 ms 5008 KB Output is correct
12 Correct 124 ms 4976 KB Output is correct
13 Correct 124 ms 4964 KB Output is correct
14 Correct 138 ms 4968 KB Output is correct
15 Correct 146 ms 5088 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Execution timed out 4054 ms 5360 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 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 212 KB Output is correct
6 Correct 37 ms 212 KB Output is correct
7 Correct 13 ms 332 KB Output is correct
8 Correct 36 ms 212 KB Output is correct
9 Correct 58 ms 308 KB Output is correct
10 Correct 12 ms 328 KB Output is correct
11 Correct 33 ms 308 KB Output is correct
12 Correct 10 ms 332 KB Output is correct
13 Correct 41 ms 320 KB Output is correct
14 Correct 10 ms 336 KB Output is correct
15 Correct 24 ms 212 KB Output is correct
16 Correct 45 ms 308 KB Output is correct
17 Correct 16 ms 328 KB Output is correct
18 Correct 40 ms 212 KB Output is correct
19 Correct 17 ms 332 KB Output is correct
20 Correct 88 ms 316 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 170 ms 5212 KB Output is correct
23 Correct 182 ms 5036 KB Output is correct
24 Correct 171 ms 5016 KB Output is correct
25 Correct 175 ms 5032 KB Output is correct
26 Correct 125 ms 5068 KB Output is correct
27 Correct 120 ms 5028 KB Output is correct
28 Correct 123 ms 4940 KB Output is correct
29 Correct 120 ms 4916 KB Output is correct
30 Correct 142 ms 5068 KB Output is correct
31 Correct 141 ms 5008 KB Output is correct
32 Correct 124 ms 4976 KB Output is correct
33 Correct 124 ms 4964 KB Output is correct
34 Correct 138 ms 4968 KB Output is correct
35 Correct 146 ms 5088 KB Output is correct
36 Execution timed out 4030 ms 5464 KB Time limit exceeded
37 Halted 0 ms 0 KB -