제출 #736085

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
736085		Sam_a17	Sprinkler (JOI22_sprinkler)	C++17	9 / 100	291 ms	25924 KiB

sprinkler

#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include "temp.cpp"
#include <cstdio>
using namespace std;
 
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
 
#define sz(x) (int((x).size()))
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) (x).clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt(x) __builtin_popcount(x)
 
#define pb push_back
#define popf pop_front
#define popb pop_back
 
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
 
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'
 
// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};
 
// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
  fastIO();
 
  if (str != "") {
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
  }
}
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const int N = 2e5 + 10;
vector<int> adj[N];
long long n, l, h[N], q;
long long d1[N], d2[N];
int dd[N];
int p[N];

void bfs(int node, int dist, long long m) {
  queue<pair<int, int>> q;
  q.push({node, 0});
  vector<bool> used(n + 1);
  used[node] = true;
  q.push({node, 0});
  h[node] = (h[node] * m) % l;

  while (!q.empty()) {
    auto u = q.front();
    q.pop();

    for(auto i: adj[u.first]) {
      if(used[i]) continue;
      used[i] = true;
      if(u.second + 1 <= dist) {
        h[i] = (h[i] * m) % l;
        q.push({i, u.second + 1});
      }
    }
  }
}

void dfs(int node, int parent) {
  p[node] = parent;
  for(auto i: adj[node]) {
    if(i == parent) continue;
    dfs(i, node);
  }
}

void solve_() {
  cin >> n >> l;

  for(int i = 1; i <= n - 1; i++) {
    int a, b; cin >> a >> b;
    adj[a].push_back(b);
    adj[b].push_back(a);
  }

  for(int i = 1; i <= n; i++) {
    cin >> h[i], dd[i] = -1;
    d1[i] = d2[i] = 1;
  }

  dfs(1, 0);

  cin >> q;
  while(q--) {
    int type; cin >> type;

    if(type == 1) {
      long long x, d, w;
      cin >> x >> d >> w;

      if(d == 0) {
        h[x] *= w;
        h[x] %= l;
      }
      else if(d == 1) {
        h[x] *= w;
        h[x] %= l;

        if(p[x]) {
          h[p[x]] *= w;
          h[p[x]] %= l;
        }

        d1[x] *= w;
        d1[x] %= l;
      } else if(d == 2) {
        int u = p[x], uu = p[p[x]];

        if(u) {
          d1[u] *= w;
          d1[u] %= l;
        }

        if(uu) {
          h[uu] *= w;
          h[uu] %= l;
        }

        d2[x] *= w;
        d2[x] %= l;
      } else {
        int cnt = d;
        while(x != 0 && cnt >= 0) {
          dd[x] = max(dd[x], cnt);
          cnt--, x = p[x];
        }
      }
    } else {
      long long x; cin >> x;
      long long cur = x;

      // int cnt = 0, ok = 0;
      // while(x != 0 && cnt < 41) {
      //   if(dd[x] != -1 && dd[x] >= cnt) {
      //     ok = 1;
      //     break;
      //   }
      //   x = p[x];
      //   cnt++;
      // }

      // if(ok) {
      //   cout << 0 << '\n';
      // } else {
        long long ans = h[cur];

        int u = p[cur], uu = p[p[cur]];
        if(u) {
          ans *= d1[u];
          ans %= l;

          ans *= d2[u];
          ans %= l;
        }

        if(uu) {
          ans *= d2[uu];
          ans %= l;
        }
        cout << ans << '\n';
      // }
    }
  }

}
 
int main() {
  setIO();
 
  auto solve = [&](int test_case)-> void {
    while(test_case--) {
      solve_();
    }
  };
 
  int test_cases = 1;
  // cin >> test_cases;
  solve(test_cases);
 
  return 0;
} 

컴파일 시 표준 에러 (stderr) 메시지

sprinkler.cpp: In function 'void setIO(std::string)':
sprinkler.cpp:64:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:65:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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