Submission #1208339

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208339		salmon	Sprinkler (JOI22_sprinkler)	C++20	12 / 100	654 ms	54536 KiB

sprinkler

#include <bits/stdc++.h>
using namespace std;

int N,Q;
long long int mod;
int st[200100][45];
vector<int> adjlst[200100];
int parent[200100];
int lst[200100];
int cont = 1;

void build(int it){
	for(int i = 0; i < 45; i++) st[it][i] = 1;
}

void update(int it, int S, int E, int k){	
	for(int i = S; i <= E; i++) st[it][i] *= k;
}

int query(int it, int in){
	return st[it][in];
}

void dfs(int i, int p){
	parent[i] = p;
	
	for(int j : adjlst[i]){
		if(j == p) continue;
		dfs(j,i);
	}
}

int main(){
	
	scanf(" %d",&N);
	scanf(" %lld",&mod);
	
	for(int i = 0; i < N - 1; i++){
		int u,v;
		scanf(" %d",&u);
		scanf(" %d",&v);
		
		adjlst[u].push_back(v);
		adjlst[v].push_back(u);
	}
	
	for(int i = 1; i <= N; i++) scanf(" %d",&lst[i]);
	
	dfs(1,-1);
	
	for(int i = 1; i <= N; i++){
		build(i);
	}
	
	scanf(" %d",&Q);
	
	for(int i = 0; i < Q; i++){
		int h;
		
		scanf(" %d",&h);
		
		if(h == 1){
			int X, D, W;
			
			scanf(" %d",&X);
			scanf(" %d",&D);
			scanf(" %d",&W);
			
			while(X != 1 && D >= 0){
				update(X,D - 1, D, W);
				X = parent[X];
				D -= 1;
			}
			
			if(X == 1 && D >= 0){
				update(X,0,D,W);
			}
		}
		else{
			int X;
			
			scanf(" %d",&X);
			
			int num = lst[X];
			int D = 0;
	
			for(int i = 0; i < 41; i++){
				num = query(X,D) * (long long int) num % mod;
				
				if(X == 1) break;
				D++;
				X = parent[X];
			}
			
			printf("%d\n",num );
		}
	}
}

Compilation message (stderr)

sprinkler.cpp: In function 'int main()':
sprinkler.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         scanf(" %d",&N);
      |         ~~~~~^~~~~~~~~~
sprinkler.cpp:39:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |         scanf(" %lld",&mod);
      |         ~~~~~^~~~~~~~~~~~~~
sprinkler.cpp:43:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |                 scanf(" %d",&u);
      |                 ~~~~~^~~~~~~~~~
sprinkler.cpp:44:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |                 scanf(" %d",&v);
      |                 ~~~~~^~~~~~~~~~
sprinkler.cpp:50:42: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |         for(int i = 1; i <= N; i++) scanf(" %d",&lst[i]);
      |                                     ~~~~~^~~~~~~~~~~~~~~
sprinkler.cpp:58:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |         scanf(" %d",&Q);
      |         ~~~~~^~~~~~~~~~
sprinkler.cpp:63:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |                 scanf(" %d",&h);
      |                 ~~~~~^~~~~~~~~~
sprinkler.cpp:68:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |                         scanf(" %d",&X);
      |                         ~~~~~^~~~~~~~~~
sprinkler.cpp:69:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |                         scanf(" %d",&D);
      |                         ~~~~~^~~~~~~~~~
sprinkler.cpp:70:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |                         scanf(" %d",&W);
      |                         ~~~~~^~~~~~~~~~
sprinkler.cpp:85:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |                         scanf(" %d",&X);
      |                         ~~~~~^~~~~~~~~~

• Subtask 1: 0 / 3
• Subtask 2: 0 / 9
• Subtask 3: 0 / 29
• Subtask 4: 12 / 12
• Subtask 5: 0 / 30
• Subtask 6: 0 / 17