Submission #1200781

#	Time	Username	Problem	Language	Result	Execution time	Memory
1200781		mychecksedad	Sprinkler (JOI22_sprinkler)	C++20	100 / 100	744 ms	120096 KiB

sprinkler

/* Author : Mychecksdead  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
#define ff first
#define ss second
#define pii pair<int,int>
#define vi vector<int>
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;

int n, par[N];
ll L, h[N][K];
vi g[N];
void dfs(int v, int p){
  par[v] = p;
  for(int u: g[v]){
    if(u != p){
      dfs(u, v);
    }
  }
}
void solve(){
  cin >> n >> L;
  for(int i = 1; i < n; ++i){
    int a, b; cin >> a >> b;
    a += K;
    b += K;
    g[a].pb(b);
    g[b].pb(a);
  }
  for(int i = 1; i <= K; ++i){
    g[i].pb(i+1);
    g[i+1].pb(i);
  }
  dfs(1, 1);
  for(int i = 1; i <= n + K; ++i){
    for(int j = 0; j < K; ++j) h[i][j] = 1;
  }
  for(int i = 1; i <= n; ++i){
    cin >> h[i + K][0];
  }
  int q; cin >> q;
  for(int i = 1; i <= q; ++i){
    int tp; cin >> tp;
    if(tp == 1){
      int v, d; ll w;
      cin >> v >> d >> w;
      v += K;
      for(; d >= 0; d--){
        h[v][d] *= w;
        h[v][d] %= L;
        v = par[v];
      }
    }else{
      int v; cin >> v;
      v += K;
      ll res = 1;
      for(int d = 0; d < K; ++d){
        res *= h[v][d];
        res %= L;
        if(d + 1 < K){
          res *= h[v][d + 1];
          res %= L;
        }
        v = par[v];
      }
      cout << res << '\n';
    }
  }
}


int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tt = 1, aa;
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  while(tt--){
    solve();
    en;
  }
  cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
  return 0;
} 

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