Submission #1158936

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1158936	2025-02-27 21:15:47	PagodePaiva	Highway Tolls (IOI18_highway)	C++17	6 / 100	375 ms	327680 KiB

highway

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#include "highway.h"
#include<bits/stdc++.h>
using namespace std;
const int N = 90010;
vector <pair <int, int>> g[N];
pair <int, int> especial;
vector <int> query;
pair <int, int> pai[N];
int h[N];
int t1;
vector <array <int, 3>> arestas;
void dfs(int v, int p){
    for(auto [x, idx] : g[v]){
        if(x == p) continue;
        query[idx] = 1;
        dfs(x, v);
    }
    return;
}
void dfs2(int v, int p){
    for(auto [x, idx] : g[v]){
        if(x == p) continue;
        h[x] = h[v]+1;
        pai[x] = {v, idx};
        if(h[x] == t1) arestas.push_back({x, v, idx});
        dfs2(x, v);
 
 
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