Submission #708735

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
708735	2023-03-12 08:52:25	Thienu	Factories (JOI14_factories)	C++17	100 / 100	6992 ms	220068 KiB

factories

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#include "factories.h"
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")
#pragma GCC target ("sse4")
//#include "grader.cpp"
#define ll long long
#define pb push_back
#define X first
#define Y second
const int maxmum=500005,maxlift=25;
vector<pair<int,int> > v[maxmum];
int n,lv[maxmum],par[maxmum][maxlift],sz_opt[maxmum];;
ll d[maxmum];
void dfs(int u,int p)
{
    for(int i=0;i<sz_opt[u];i++)
    {
        int node=v[u][i].X,cost=v[u][i].Y;
        if(node==p)continue;
        lv[node]=lv[u]+1;
        d[node]=d[u]+cost;
        par[node][0]=u;
        dfs(node,u);
    }
}
int lca(int a,int b)
{
    if(lv[a]<lv[b])swap(a,b);
    int lv_diff = lv[a] - lv[b];
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67