Submission #109308

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
109308	2019-05-06 06:37:01	Diuven	Factories (JOI14_factories)	C++14	100 / 100	5228 ms	143736 KiB

factories

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#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef pair<int, lint> pil;
typedef vector<int> Vint;
typedef vector<pil> Vpil;
const lint LNF = 2e18;
const int MAX = 5e5 + 10;
const int LG = 19;
int nu[MAX], ri[MAX], iv[MAX], dep[MAX], n;
int st[MAX][LG];
lint D[MAX];
vector<pil> G[MAX];
void dfs1(int v, int p, int cnt=0, lint sum=0){
  static int now = 0;
  nu[v] = ++now, ri[v] = nu[v], iv[nu[v]] = v;
  dep[v] = cnt, D[v] = sum;
  for(pil e:G[v]){
    int x; lint c; tie(x,c) = e;
    if(x==p) continue;
    st[x][0] = v;
    for(int i=1; i<LG; i++)
      st[x][i] = st[st[x][i-1]][i-1];
    dfs1(x,v,cnt+1,sum+c);
    ri[v] = ri[x];
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67