oj.uz

Submission #615208

# Submission time Handle Problem Language Result Execution time Memory
615208 2022-07-31T07:38:22 Z zz(#8674) Sprinkler (JOI22_sprinkler) C++17
3 / 100
 4000 ms 80856 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);
				int cnt = 0, s = N, e = 0;
				for(int j=0; j<L[dep[c]].size(); j++) {
					if(dst(L[dep[c]][j], x) > d) continue;
					++cnt;
					s = min(s, j); e = max(e, j);
					H[L[dep[c]][j]] = 1LL * H[L[dep[c]][j]] * w % M;
				}
				if(s>e) break;
				assert(cnt == e-s+1);
				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);
				int cnt = 0, s = N, e = 0;
				for(int j=0; j<L[dep[c]].size(); j++) {
					if(dst(L[dep[c]][j], x) > d) continue;
					++cnt;
					s = min(s, j); e = max(e, j);
					H[L[dep[c]][j]] = 1LL * H[L[dep[c]][j]] * w % M;
				}
				if(s>e) break;
				assert(cnt == e-s+1);
			}
		}
		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:145:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |     for(int j=0; j<L[dep[c]].size(); j++) {
      |                  ~^~~~~~~~~~~~~~~~~
sprinkler.cpp:165:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  165 |     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 11 ms 20692 KB Output is correct
2 Correct 11 ms 20628 KB Output is correct
3 Correct 11 ms 20660 KB Output is correct
4 Correct 13 ms 20948 KB Output is correct
5 Correct 22 ms 20864 KB Output is correct
6 Correct 34 ms 20820 KB Output is correct
7 Correct 41 ms 20900 KB Output is correct
8 Correct 39 ms 20904 KB Output is correct
9 Correct 11 ms 20692 KB Output is correct
10 Correct 12 ms 20720 KB Output is correct
11 Correct 12 ms 20672 KB Output is correct
12 Correct 12 ms 20676 KB Output is correct
13 Correct 15 ms 20608 KB Output is correct
14 Correct 12 ms 20668 KB Output is correct
15 Correct 12 ms 20668 KB Output is correct
16 Correct 12 ms 20672 KB Output is correct
17 Correct 13 ms 20672 KB Output is correct
18 Correct 11 ms 20692 KB Output is correct
19 Correct 11 ms 20692 KB Output is correct
20 Correct 11 ms 20668 KB Output is correct
21 Correct 11 ms 20692 KB Output is correct
22 Correct 11 ms 20692 KB Output is correct
23 Correct 11 ms 20632 KB Output is correct
24 Correct 11 ms 20664 KB Output is correct
25 Correct 11 ms 20668 KB Output is correct
26 Correct 12 ms 20704 KB Output is correct
27 Correct 14 ms 20692 KB Output is correct
28 Correct 14 ms 20668 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 20660 KB Output is correct
2 Execution timed out 4029 ms 55224 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 20660 KB Output is correct
2 Execution timed out 4029 ms 55224 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 20692 KB Output is correct
2 Correct 1040 ms 80856 KB Output is correct
3 Execution timed out 4081 ms 73624 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 20692 KB Output is correct
2 Correct 3010 ms 74388 KB Output is correct
3 Execution timed out 4046 ms 67232 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 20692 KB Output is correct
2 Correct 11 ms 20628 KB Output is correct
3 Correct 11 ms 20660 KB Output is correct
4 Correct 13 ms 20948 KB Output is correct
5 Correct 22 ms 20864 KB Output is correct
6 Correct 34 ms 20820 KB Output is correct
7 Correct 41 ms 20900 KB Output is correct
8 Correct 39 ms 20904 KB Output is correct
9 Correct 11 ms 20692 KB Output is correct
10 Correct 12 ms 20720 KB Output is correct
11 Correct 12 ms 20672 KB Output is correct
12 Correct 12 ms 20676 KB Output is correct
13 Correct 15 ms 20608 KB Output is correct
14 Correct 12 ms 20668 KB Output is correct
15 Correct 12 ms 20668 KB Output is correct
16 Correct 12 ms 20672 KB Output is correct
17 Correct 13 ms 20672 KB Output is correct
18 Correct 11 ms 20692 KB Output is correct
19 Correct 11 ms 20692 KB Output is correct
20 Correct 11 ms 20668 KB Output is correct
21 Correct 11 ms 20692 KB Output is correct
22 Correct 11 ms 20692 KB Output is correct
23 Correct 11 ms 20632 KB Output is correct
24 Correct 11 ms 20664 KB Output is correct
25 Correct 11 ms 20668 KB Output is correct
26 Correct 12 ms 20704 KB Output is correct
27 Correct 14 ms 20692 KB Output is correct
28 Correct 14 ms 20668 KB Output is correct
29 Correct 11 ms 20660 KB Output is correct
30 Execution timed out 4029 ms 55224 KB Time limit exceeded
31 Halted 0 ms 0 KB -