제출 #892504

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
892504		vjudge1	Sprinkler (JOI22_sprinkler)	C++17	12 / 100	568 ms	113488 KiB

sprinkler

#include <bits/stdc++.h>
#define ll long long
#define str string
#define ins insert
#define ld long double
#define pb push_back
#define pf push_front
#define pof pop_front()
#define pob pop_back()
#define lb lower_bound
#define ub upper_bound
#define endl "\n"
#define fr first
#define sc second
#define mpa make_pair
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define sz size()
#define bc back()
#define ar array
#define vll vector<ll> 
using namespace std;/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;*/
template <class _T>
bool chmin(_T &x, const _T &y){
    if(x>y){
        x=y;
        return true;
    }
    return false;
}
template <class _T>
bool chmax(_T &x, const _T &y){
    bool flag=false;
    if (x<y){
        x=y;flag|=true;
    }
    return flag;
}
//#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
void start(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
const ll inf=2e18+7;
const ll mod=1e9+7;
const ll N=2e5+7;
const ld eps=1e-9;
vector<vll> g(N);
ll h[N];
ll i;
ll n,k,p[N];
ll val[N][50];
void dfs(ll v,ll p,ll w,ll d,ll r){
	h[v]*=w;
	h[v]%=k;
	if(d==r)return;
	for(auto i : g[v]){
		if(i==p)continue;
		dfs(i,v,w,d+1,r);
	}
}
void dfs2(ll v){
	for(auto i : g[v]){
		if(i==p[v])continue;
		p[i]=v;
		dfs2(i);
	}
}
void solve(){
	ll i,j,q;
	ll a,b,c;
	cin>>n>>k;
	for(i=0;i<=n;i++){
		for(j=0;j<=45;j++)val[i][j]=1;
	}
	for(i=1;i<n;i++){
		cin>>a>>b;
		g[a].pb(b);
		g[b].pb(a);
	}
	for(i=1;i<=n;i++)cin>>h[i];
	dfs2(1);
	cin>>q;
	ll t;
	for(i=0;i<q;i++){
		cin>>t;
		if(t==1){
			cin>>a>>b>>c;
			while(b>0){
				val[a][b]*=c;
				val[a][b-1]*=c;
				val[a][b]%=k;
				val[a][b-1]%=k;
				b--;
				if(p[a]==0)break;
				a=p[a];
			}
			while(b){
				val[a][b]*=c;
				val[a][b]%=k;
				b--;
			}
			val[a][0]*=c;
			val[a][0]%=k;
		}else{
			cin>>a;
			b=a;
			ll ans=h[a]*val[a][0]%k;
			for(j=1;j<=40;j++){
				a=p[a];
				if(a==0)break;
				ans*=val[a][j];
				ans%=k;
			}
			cout<<ans<<endl;
		}
	}
}
signed main(){
	start();
    ll t=1;
	//cin>>t;
    while(t--) solve();
    return 0;
}
/*
1
7
1 2
2 3
3 4
4 5
3 6
6 7
2
4 1
5 7






*/

컴파일 시 표준 에러 (stderr) 메시지

sprinkler.cpp: In function 'void fre(std::string)':
sprinkler.cpp:43:27: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 | void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:43:64: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 | void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                                                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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