Submission #527632

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
527632	2022-02-17 21:01:20	NekoRolly	Factories (JOI14_factories)	C++17	100 / 100	3459 ms	170304 KiB

factories

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#include "factories.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 5e5+4;
const ll inf = 1e18;
struct Cd{
  vector<pair<int,int>> adj[N];
  int sz[N],up[N],h[N],vis[N];
  ll dis[N][19],val[N];
  int find(int u,int p,int Sz){
    int val = 0,x = 0; sz[u] = 1;
    for (auto [v, w] : adj[u]) if (v != p && !vis[v]){
      x ^= find(v, u, Sz); sz[u] += sz[v];
      val = max(val, sz[v]);
    }
    if (max(val, Sz-sz[u]) <= Sz/2) up[x = u] = p;
    return x;
  }
  void dfs(int u,int p,int H){
    for (auto [v, w] : adj[u]) if (v != p && !vis[v]){
      dis[v][H] = dis[u][H] + w;
      dfs(v, u, H);
    }
  }
  void build(int u,int p,int Sz){
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67