oj.uz

Submission #551753

# Submission time Handle Problem Language Result Execution time Memory
551753 2022-04-21T12:26:55 Z nonsensenonsense1 Sprinkler (JOI22_sprinkler) C++17
41 / 100
 4000 ms 85196 KB 
#pragma GCC optimize("O3,unroll-loops")
#include <cstdio>
#include <vector>

int md;
inline int mul(int a, int b) {
	return (long long)a * b % md;
}

const int N = 200005;
const int LG = 19;
const int K = 500;
std::vector<int> g[N], list[N], t[N];
int q, n, dep[N], pr[N], pos[N], h[N], start[N], out[N], amt, st[LG][N * 2], clz[N * 2];

void dfs(int v) {
	static int dt = 0;
	++dt;
	pos[v] = list[dep[v]].size();
	list[dep[v]].push_back(v);
	start[v] = amt;
	st[0][amt++] = dep[v];
	for (int i = 0; i < (int)g[v].size(); ++i) if (g[v][i] != pr[v]) {
		if (i) st[0][amt++] = dep[v];
		pr[g[v][i]] = v;
		dep[g[v][i]] = dep[v] + 1;
		dfs(g[v][i]);
	}
	out[v] = dt;
}

int l;
int dlca(int u, int v) {
	u = start[u];
	v = start[v];
	if (u > v) std::swap(u, v);
	++v;
	l = clz[v - u];
	return std::min(st[l][u], st[l][v - (1 << l)]);
}

int f(int u, int v) {
	return dep[u] + dep[v] - 2 * dlca(u, v);
}

void update(std::vector<int> &t, int l, int r, int x) {
	if (!x) {
		for (l += t.size() >> 1, r += t.size() >> 1; l < r; l >>= 1, r >>= 1) {
			if (l & 1) t[l++] = 0;
			if (r & 1) t[--r] = 0;
		}
		return;
	}
	for (l += t.size() >> 1, r += t.size() >> 1; l < r; l >>= 1, r >>= 1) {
		if (l & 1) {
			t[l] = mul(t[l], x);
			++l;
		}
		if (r & 1) {
			--r;
			t[r] = mul(t[r], x);
		}
	}
}

int get(std::vector<int> &t, int i) {
	int res = 1;
	for (i += t.size() >> 1; i > 0; i >>= 1) res = mul(res, t[i]);
	return res;
}

int main() {
	scanf("%d%d", &n, &md);
	clz[1] = 0;
	for (int i = 2; i <= 2 * n; ++i) {
		clz[i] = clz[i - 1];
		while (1 << clz[i] + 1 <= i) ++clz[i];
	}
	for (int i = 1; i < n; ++i) {
		int a, b;
		scanf("%d%d", &a, &b);
		g[a - 1].push_back(b - 1);
		g[b - 1].push_back(a - 1);
	}
	dfs(0);
	for (int j = 1; j < LG; ++j) for (int i = 0; i + (1 << j) <= 2 * n; ++i) st[j][i] = std::min(st[j - 1][i], st[j - 1][i + (1 << j - 1)]);
	for (int i = 0; i < n; ++i) scanf("%d", h + i);
	for (int i = 0; i < n; ++i) t[i].resize(list[i].size() << 1, 1);
	scanf("%d", &q);
	while (q--) {
		int type, v;
		scanf("%d%d", &type, &v);
		--v;
		if (type == 1) {
			int dist, x;
			scanf("%d%d", &dist, &x);
			for (int i = dep[v] + dist; i >= std::max(0, dep[v] - dist); --i) {
				int l = 0, r = list[i].size();
				while (l < r) {
					int m = l + r >> 1;
					if (out[list[i][m]] >= out[v] || f(v, list[i][m]) <= dist) r = m;
					else l = m + 1;
				}
				int fi = r;
				l = r, r = list[i].size();
				while (l < r) {
					int m = l + r >> 1;
					if (out[list[i][m]] >= out[v] && f(v, list[i][m]) > dist) r = m;
					else l = m + 1;
				}
				update(t[i], fi, r, x);
			}
		} else printf("%d\n", mul(h[v], get(t[dep[v]], pos[v])));
	}
	return 0;
}

Compilation message

sprinkler.cpp: In function 'int main()':
sprinkler.cpp:77:22: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   77 |   while (1 << clz[i] + 1 <= i) ++clz[i];
      |               ~~~~~~~^~~
sprinkler.cpp:86:131: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   86 |  for (int j = 1; j < LG; ++j) for (int i = 0; i + (1 << j) <= 2 * n; ++i) st[j][i] = std::min(st[j - 1][i], st[j - 1][i + (1 << j - 1)]);
      |                                                                                                                                 ~~^~~
sprinkler.cpp:100:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  100 |      int m = l + r >> 1;
      |              ~~^~~
sprinkler.cpp:107:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  107 |      int m = l + r >> 1;
      |              ~~^~~
sprinkler.cpp:73:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |  scanf("%d%d", &n, &md);
      |  ~~~~~^~~~~~~~~~~~~~~~~
sprinkler.cpp:81:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |   scanf("%d%d", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~
sprinkler.cpp:87:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   87 |  for (int i = 0; i < n; ++i) scanf("%d", h + i);
      |                              ~~~~~^~~~~~~~~~~~~
sprinkler.cpp:89:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |  scanf("%d", &q);
      |  ~~~~~^~~~~~~~~~
sprinkler.cpp:92:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   92 |   scanf("%d%d", &type, &v);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~
sprinkler.cpp:96:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |    scanf("%d%d", &dist, &x);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14420 KB Output is correct
4 Correct 10 ms 14676 KB Output is correct
5 Correct 10 ms 14660 KB Output is correct
6 Correct 10 ms 14548 KB Output is correct
7 Correct 10 ms 14540 KB Output is correct
8 Correct 9 ms 14548 KB Output is correct
9 Correct 8 ms 14448 KB Output is correct
10 Correct 9 ms 14420 KB Output is correct
11 Correct 10 ms 14420 KB Output is correct
12 Correct 8 ms 14460 KB Output is correct
13 Correct 8 ms 14420 KB Output is correct
14 Correct 11 ms 14368 KB Output is correct
15 Correct 9 ms 14420 KB Output is correct
16 Correct 9 ms 14420 KB Output is correct
17 Correct 9 ms 14468 KB Output is correct
18 Correct 9 ms 14420 KB Output is correct
19 Correct 9 ms 14420 KB Output is correct
20 Correct 9 ms 14420 KB Output is correct
21 Correct 9 ms 14420 KB Output is correct
22 Correct 9 ms 14420 KB Output is correct
23 Correct 8 ms 14420 KB Output is correct
24 Correct 8 ms 14420 KB Output is correct
25 Correct 8 ms 14420 KB Output is correct
26 Correct 9 ms 14368 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 9 ms 14420 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 506 ms 60712 KB Output is correct
3 Correct 892 ms 57564 KB Output is correct
4 Correct 540 ms 74292 KB Output is correct
5 Correct 640 ms 59392 KB Output is correct
6 Correct 855 ms 58852 KB Output is correct
7 Correct 853 ms 59132 KB Output is correct
8 Correct 634 ms 59744 KB Output is correct
9 Correct 438 ms 85196 KB Output is correct
10 Correct 579 ms 79764 KB Output is correct
11 Correct 427 ms 60744 KB Output is correct
12 Correct 865 ms 57736 KB Output is correct
13 Correct 490 ms 58888 KB Output is correct
14 Correct 588 ms 58140 KB Output is correct
15 Correct 654 ms 58180 KB Output is correct
16 Correct 828 ms 58180 KB Output is correct
17 Correct 868 ms 58720 KB Output is correct
18 Correct 9 ms 14420 KB Output is correct
19 Correct 10 ms 14420 KB Output is correct
20 Correct 9 ms 14420 KB Output is correct
21 Correct 9 ms 14464 KB Output is correct
22 Correct 9 ms 14420 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 506 ms 60712 KB Output is correct
3 Correct 892 ms 57564 KB Output is correct
4 Correct 540 ms 74292 KB Output is correct
5 Correct 640 ms 59392 KB Output is correct
6 Correct 855 ms 58852 KB Output is correct
7 Correct 853 ms 59132 KB Output is correct
8 Correct 634 ms 59744 KB Output is correct
9 Correct 438 ms 85196 KB Output is correct
10 Correct 579 ms 79764 KB Output is correct
11 Correct 427 ms 60744 KB Output is correct
12 Correct 865 ms 57736 KB Output is correct
13 Correct 490 ms 58888 KB Output is correct
14 Correct 588 ms 58140 KB Output is correct
15 Correct 654 ms 58180 KB Output is correct
16 Correct 828 ms 58180 KB Output is correct
17 Correct 868 ms 58720 KB Output is correct
18 Correct 9 ms 14420 KB Output is correct
19 Correct 10 ms 14420 KB Output is correct
20 Correct 9 ms 14420 KB Output is correct
21 Correct 9 ms 14464 KB Output is correct
22 Correct 9 ms 14420 KB Output is correct
23 Correct 8 ms 14432 KB Output is correct
24 Correct 495 ms 60756 KB Output is correct
25 Correct 1135 ms 57780 KB Output is correct
26 Correct 516 ms 82256 KB Output is correct
27 Correct 673 ms 59168 KB Output is correct
28 Correct 1071 ms 59012 KB Output is correct
29 Correct 983 ms 59124 KB Output is correct
30 Correct 613 ms 59776 KB Output is correct
31 Correct 438 ms 76708 KB Output is correct
32 Correct 580 ms 79760 KB Output is correct
33 Correct 457 ms 60768 KB Output is correct
34 Correct 1223 ms 57580 KB Output is correct
35 Correct 9 ms 14420 KB Output is correct
36 Correct 9 ms 14456 KB Output is correct
37 Correct 9 ms 14420 KB Output is correct
38 Correct 8 ms 14420 KB Output is correct
39 Correct 9 ms 14440 KB Output is correct
40 Correct 11 ms 14376 KB Output is correct
41 Correct 10 ms 14420 KB Output is correct
42 Correct 9 ms 14420 KB Output is correct
43 Correct 8 ms 14420 KB Output is correct
44 Correct 9 ms 14400 KB Output is correct
45 Correct 10 ms 14444 KB Output is correct
46 Correct 9 ms 14420 KB Output is correct
47 Correct 8 ms 14416 KB Output is correct
48 Correct 9 ms 14432 KB Output is correct
49 Correct 8 ms 14380 KB Output is correct

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14456 KB Output is correct
2 Correct 635 ms 81944 KB Output is correct
3 Correct 1741 ms 74612 KB Output is correct
4 Correct 831 ms 76364 KB Output is correct
5 Execution timed out 4097 ms 57536 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 612 ms 75708 KB Output is correct
3 Correct 1982 ms 68620 KB Output is correct
4 Correct 864 ms 72780 KB Output is correct
5 Correct 3707 ms 59212 KB Output is correct
6 Execution timed out 4097 ms 59056 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14420 KB Output is correct
4 Correct 10 ms 14676 KB Output is correct
5 Correct 10 ms 14660 KB Output is correct
6 Correct 10 ms 14548 KB Output is correct
7 Correct 10 ms 14540 KB Output is correct
8 Correct 9 ms 14548 KB Output is correct
9 Correct 8 ms 14448 KB Output is correct
10 Correct 9 ms 14420 KB Output is correct
11 Correct 10 ms 14420 KB Output is correct
12 Correct 8 ms 14460 KB Output is correct
13 Correct 8 ms 14420 KB Output is correct
14 Correct 11 ms 14368 KB Output is correct
15 Correct 9 ms 14420 KB Output is correct
16 Correct 9 ms 14420 KB Output is correct
17 Correct 9 ms 14468 KB Output is correct
18 Correct 9 ms 14420 KB Output is correct
19 Correct 9 ms 14420 KB Output is correct
20 Correct 9 ms 14420 KB Output is correct
21 Correct 9 ms 14420 KB Output is correct
22 Correct 9 ms 14420 KB Output is correct
23 Correct 8 ms 14420 KB Output is correct
24 Correct 8 ms 14420 KB Output is correct
25 Correct 8 ms 14420 KB Output is correct
26 Correct 9 ms 14368 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 9 ms 14420 KB Output is correct
29 Correct 8 ms 14420 KB Output is correct
30 Correct 506 ms 60712 KB Output is correct
31 Correct 892 ms 57564 KB Output is correct
32 Correct 540 ms 74292 KB Output is correct
33 Correct 640 ms 59392 KB Output is correct
34 Correct 855 ms 58852 KB Output is correct
35 Correct 853 ms 59132 KB Output is correct
36 Correct 634 ms 59744 KB Output is correct
37 Correct 438 ms 85196 KB Output is correct
38 Correct 579 ms 79764 KB Output is correct
39 Correct 427 ms 60744 KB Output is correct
40 Correct 865 ms 57736 KB Output is correct
41 Correct 490 ms 58888 KB Output is correct
42 Correct 588 ms 58140 KB Output is correct
43 Correct 654 ms 58180 KB Output is correct
44 Correct 828 ms 58180 KB Output is correct
45 Correct 868 ms 58720 KB Output is correct
46 Correct 9 ms 14420 KB Output is correct
47 Correct 10 ms 14420 KB Output is correct
48 Correct 9 ms 14420 KB Output is correct
49 Correct 9 ms 14464 KB Output is correct
50 Correct 9 ms 14420 KB Output is correct
51 Correct 8 ms 14432 KB Output is correct
52 Correct 495 ms 60756 KB Output is correct
53 Correct 1135 ms 57780 KB Output is correct
54 Correct 516 ms 82256 KB Output is correct
55 Correct 673 ms 59168 KB Output is correct
56 Correct 1071 ms 59012 KB Output is correct
57 Correct 983 ms 59124 KB Output is correct
58 Correct 613 ms 59776 KB Output is correct
59 Correct 438 ms 76708 KB Output is correct
60 Correct 580 ms 79760 KB Output is correct
61 Correct 457 ms 60768 KB Output is correct
62 Correct 1223 ms 57580 KB Output is correct
63 Correct 9 ms 14420 KB Output is correct
64 Correct 9 ms 14456 KB Output is correct
65 Correct 9 ms 14420 KB Output is correct
66 Correct 8 ms 14420 KB Output is correct
67 Correct 9 ms 14440 KB Output is correct
68 Correct 11 ms 14376 KB Output is correct
69 Correct 10 ms 14420 KB Output is correct
70 Correct 9 ms 14420 KB Output is correct
71 Correct 8 ms 14420 KB Output is correct
72 Correct 9 ms 14400 KB Output is correct
73 Correct 10 ms 14444 KB Output is correct
74 Correct 9 ms 14420 KB Output is correct
75 Correct 8 ms 14416 KB Output is correct
76 Correct 9 ms 14432 KB Output is correct
77 Correct 8 ms 14380 KB Output is correct
78 Correct 9 ms 14456 KB Output is correct
79 Correct 635 ms 81944 KB Output is correct
80 Correct 1741 ms 74612 KB Output is correct
81 Correct 831 ms 76364 KB Output is correct
82 Execution timed out 4097 ms 57536 KB Time limit exceeded
83 Halted 0 ms 0 KB -