Submission #1154887

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1154887	2025-02-21 11:18:57	knhatdev	Factories (JOI14_factories)	C++20	100 / 100	2262 ms	175872 KiB

factories

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#include<bits/stdc++.h>
#include "factories.h"
#define ll long long
#define ii pair<int,int>
#define fi first
#define se second
using namespace std;
const int N = 5e5 + 5;
const ll oo = 1e18;
int n, q, tin[N], tout[N], h[N], timer, up[N][25];
vector<ii> g[N];
ll sum[N];
vector<pair<int, ll>> g2[N];
int type[N];
ll res, dp[N][5];
void dfs2(int u){
    dp[u][0] = dp[u][1] = oo;
    if(type[u] != -1){
        dp[u][type[u]] = 0;
    }
    for(pair<int,ll> tmp : g2[u]){
        int v = tmp.fi;
        ll c = tmp.se;
        dfs2(v);
        res = min(res,
                  min(dp[u][0] + c + dp[v][1], dp[u][1] + c + dp[v][0]));
        for(int t = 2; t--;){
            dp[u][t] = min(dp[u][t], dp[v][t] + c);
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67