oj.uz

Submission #615177

# Submission time Handle Problem Language Result Execution time Memory
615177 2022-07-31T07:24:27 Z zz(#8674) Sprinkler (JOI22_sprinkler) C++17
3 / 100
 4000 ms 80792 KB 
#include <bits/stdc++.h>
using namespace std;

int M;

struct seg {
	int sz;
	vector<int> T, L;
	void push(int idx, int s, int e) {
		if(L[idx] != 1) {
			T[idx] = 1LL * T[idx] * L[idx] % M;
			if(s != e) {
				L[idx*2] = 1LL * L[idx*2] * L[idx] % M;
				L[idx*2+1] = 1LL * L[idx*2+1] * L[idx] % M;
			}
			L[idx] = 1;
		}
	}
	void upd(int idx, int s, int e, int l, int r, int v) {
		push(idx, s, e);
		if(r < s || e < l) return;
		if(l <= s && e <= r) {
			L[idx] = v;
			push(idx, s, e);
			return;
		}
		int m = s+e >> 1;
		upd(idx*2, s, m, l, r, v);
		upd(idx*2+1, m+1, e, l, r, v);
	}
	void upd(int l, int r, int v) {
		upd(1, 0, sz-1, l, r, v);
	}
	int get(int idx, int s, int e, int p) {
		push(idx, s, e);
		if(p < s || e < p) return 0;
		if(s == e) return T[idx];
		int m = s+e >> 1;
		return get(idx*2, s, m, p) ^ get(idx*2+1, m+1, e, p);
	}
	int get(int p) {
		return get(1, 0, sz-1, p);
	}
	void init(vector<int> &A, int idx, int s, int e) {
		T[idx] = L[idx] = 1;
		if(s == e) {
			T[idx] = A[s];
			return;
		}
		int m = s+e >> 1;
		init(A, idx*2, s, m);
		init(A, idx*2+1, m+1, e);
	}
	void init(vector<int> A) {
		sz = A.size();
		T.resize(4*sz);
		L.resize(4*sz);
		init(A, 1, 0, sz-1);
	}
} S[200009];

vector<int> G[200009], L[200009];
int H[200009], P[22][200009], l, in[200009], ou[200009], ti, dep[200009], ord[200009], md, C[200009], dp[200009];

void dfs(int x, int p, int d) {
	in[x] = ++ti;
	P[0][x] = p;
	dep[x] = d;
	ord[x] = L[d].size();
	md = max(md, d);
	L[d].push_back(x);
	dp[x] = d;
	if(L[d+1].size()) C[x] = L[d+1].back();
	for(auto& it: G[x]) if(it != p) {
		dfs(it, x, d+1);
		if(dp[x] < dp[it]) {
			dp[x] = dp[it];
			C[x] = it;
		}
	}
	ou[x] = ti;
}

bool isup(int u, int v) {
	return in[u] <= in[v] && ou[u] >= ou[v];
}

int lca(int u, int v) {
	if(isup(u, v)) return u;
	if(isup(v, u)) return v;
	for(int i=l; i>=0; i--) if(!isup(P[i][u], v)) u = P[i][u];
	return P[0][u];
}

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

pair<int, int> fnd(int c, int x, int d) {
	int s = ord[c] + 1, e = ord[c];
	int l = 0, r = ord[c];
	while(l <= r) {
		int m = l+r >> 1;
		if(dst(L[dep[c]][m], x) <= d) r = m-1, s = m;
		else l = m+1;
	}
	l = ord[c], r = L[dep[c]].size() - 1;
	while(l <= r) {
		int m = l+r >> 1;
		if(dst(L[dep[c]][m], x) <= d) l = m+1, e = m;
		else r = m-1;
	}
	return make_pair(s, e);
}

int main() {
	int N; scanf("%d%d", &N, &M);
	for(int i=1; i<N; i++) {
		int u, v; scanf("%d%d", &u, &v);
		G[u].push_back(v);
		G[v].push_back(u);
	}
	for(int i=1; i<=N; i++) scanf("%d", &H[i]);
	dfs(1, 1, 0);
	for(int i=1; (1<<i)<=N; i++) {
		for(int j=1; j<=N; j++) P[i][j] = P[i-1][P[i-1][j]];
		l = i;
	}
	for(int i=0; i<=md; i++) {
		vector<int> A;
		for(auto& it: L[i]) A.push_back(H[it]);
		S[i].init(A);
	}
	int Q; scanf("%d", &Q);
	for(int i=1; i<=Q; i++) {
		int t, x; scanf("%d%d", &t, &x);
		if(t == 1) {
			int d, w; scanf("%d%d", &d, &w);
			int c = x;
			for(int i=0; i<=d; i++) {
				//int s, e; tie(s, e) = fnd(c, x, d);
				//printf("d: %d, [%d, %d]\n", dep[c], s, e);
				//S[dep[c]].upd(s, e, w);
				for(int j=0; j<L[dep[c]].size(); j++) {
					if(dst(L[dep[c]][j], x) > d) continue;
					H[L[dep[c]][j]] = 1LL * H[L[dep[c]][j]] * w % M;
				}
				if(dep[c] == md) break;
				if(C[c]) c = C[c];
				else c = L[dep[c] + 1][0];
			}
			c = x;
			for(int i=1; i<=d; i++) {
				if(P[0][c] == c) break;
				c = P[0][c];
				//int s, e; tie(s, e) = fnd(c, x, d);
				//printf("d: %d, [%d, %d]\n", dep[c], s, e);
				//S[dep[c]].upd(s, e, w);
				for(int j=0; j<L[dep[c]].size(); j++) {
					if(dst(L[dep[c]][j], x) > d) continue;
					H[L[dep[c]][j]] = 1LL * H[L[dep[c]][j]] * w % M;
				}
			}
		}
		if(t == 2) {
			//printf("%d\n", S[dep[x]].get(ord[x]));
			printf("%d\n", H[x]);
		}
	}
	return 0;
}

Compilation message

sprinkler.cpp: In member function 'void seg::upd(int, int, int, int, int, int)':
sprinkler.cpp:27:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |   int m = s+e >> 1;
      |           ~^~
sprinkler.cpp: In member function 'int seg::get(int, int, int, int)':
sprinkler.cpp:38:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |   int m = s+e >> 1;
      |           ~^~
sprinkler.cpp: In member function 'void seg::init(std::vector<int>&, int, int, int)':
sprinkler.cpp:50:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |   int m = s+e >> 1;
      |           ~^~
sprinkler.cpp: In function 'std::pair<int, int> fnd(int, int, int)':
sprinkler.cpp:103:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  103 |   int m = l+r >> 1;
      |           ~^~
sprinkler.cpp:109:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  109 |   int m = l+r >> 1;
      |           ~^~
sprinkler.cpp: In function 'int main()':
sprinkler.cpp:144:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  144 |     for(int j=0; j<L[dep[c]].size(); j++) {
      |                  ~^~~~~~~~~~~~~~~~~
sprinkler.cpp:159:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  159 |     for(int j=0; j<L[dep[c]].size(); j++) {
      |                  ~^~~~~~~~~~~~~~~~~
sprinkler.cpp:117:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |  int N; scanf("%d%d", &N, &M);
      |         ~~~~~^~~~~~~~~~~~~~~~
sprinkler.cpp:119:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  119 |   int u, v; scanf("%d%d", &u, &v);
      |             ~~~~~^~~~~~~~~~~~~~~~
sprinkler.cpp:123:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  123 |  for(int i=1; i<=N; i++) scanf("%d", &H[i]);
      |                          ~~~~~^~~~~~~~~~~~~
sprinkler.cpp:134:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  134 |  int Q; scanf("%d", &Q);
      |         ~~~~~^~~~~~~~~~
sprinkler.cpp:136:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  136 |   int t, x; scanf("%d%d", &t, &x);
      |             ~~~~~^~~~~~~~~~~~~~~~
sprinkler.cpp:138:19: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  138 |    int d, w; scanf("%d%d", &d, &w);
      |              ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 20692 KB Output is correct
2 Correct 14 ms 20692 KB Output is correct
3 Correct 12 ms 20660 KB Output is correct
4 Correct 15 ms 20948 KB Output is correct
5 Correct 24 ms 20804 KB Output is correct
6 Correct 31 ms 20820 KB Output is correct
7 Correct 35 ms 20924 KB Output is correct
8 Correct 40 ms 20820 KB Output is correct
9 Correct 11 ms 20720 KB Output is correct
10 Correct 11 ms 20672 KB Output is correct
11 Correct 11 ms 20712 KB Output is correct
12 Correct 11 ms 20672 KB Output is correct
13 Correct 11 ms 20692 KB Output is correct
14 Correct 11 ms 20676 KB Output is correct
15 Correct 11 ms 20728 KB Output is correct
16 Correct 11 ms 20692 KB Output is correct
17 Correct 11 ms 20628 KB Output is correct
18 Correct 11 ms 20736 KB Output is correct
19 Correct 14 ms 20592 KB Output is correct
20 Correct 11 ms 20692 KB Output is correct
21 Correct 11 ms 20624 KB Output is correct
22 Correct 13 ms 20664 KB Output is correct
23 Correct 13 ms 20692 KB Output is correct
24 Correct 12 ms 20668 KB Output is correct
25 Correct 11 ms 20692 KB Output is correct
26 Correct 13 ms 20692 KB Output is correct
27 Correct 13 ms 20712 KB Output is correct
28 Correct 12 ms 20668 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 20692 KB Output is correct
2 Execution timed out 4072 ms 56328 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 20692 KB Output is correct
2 Execution timed out 4072 ms 56328 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 20692 KB Output is correct
2 Correct 1010 ms 80792 KB Output is correct
3 Execution timed out 4067 ms 74880 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 20692 KB Output is correct
2 Correct 2574 ms 74152 KB Output is correct
3 Execution timed out 4102 ms 66896 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 20692 KB Output is correct
2 Correct 14 ms 20692 KB Output is correct
3 Correct 12 ms 20660 KB Output is correct
4 Correct 15 ms 20948 KB Output is correct
5 Correct 24 ms 20804 KB Output is correct
6 Correct 31 ms 20820 KB Output is correct
7 Correct 35 ms 20924 KB Output is correct
8 Correct 40 ms 20820 KB Output is correct
9 Correct 11 ms 20720 KB Output is correct
10 Correct 11 ms 20672 KB Output is correct
11 Correct 11 ms 20712 KB Output is correct
12 Correct 11 ms 20672 KB Output is correct
13 Correct 11 ms 20692 KB Output is correct
14 Correct 11 ms 20676 KB Output is correct
15 Correct 11 ms 20728 KB Output is correct
16 Correct 11 ms 20692 KB Output is correct
17 Correct 11 ms 20628 KB Output is correct
18 Correct 11 ms 20736 KB Output is correct
19 Correct 14 ms 20592 KB Output is correct
20 Correct 11 ms 20692 KB Output is correct
21 Correct 11 ms 20624 KB Output is correct
22 Correct 13 ms 20664 KB Output is correct
23 Correct 13 ms 20692 KB Output is correct
24 Correct 12 ms 20668 KB Output is correct
25 Correct 11 ms 20692 KB Output is correct
26 Correct 13 ms 20692 KB Output is correct
27 Correct 13 ms 20712 KB Output is correct
28 Correct 12 ms 20668 KB Output is correct
29 Correct 11 ms 20692 KB Output is correct
30 Execution timed out 4072 ms 56328 KB Time limit exceeded
31 Halted 0 ms 0 KB -