Submission #809044

#	Time	Username	Problem	Language	Result	Execution time	Memory
809044		TheSahib	Crocodile's Underground City (IOI11_crocodile)	C++14	46 / 100	114 ms	262144 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>

#define pii pair<int, int>
#define ll long long

using namespace std;

const int MAX = 3e5 + 5;

vector<pii> g[MAX];

int dp[MAX];
void dfs(int node, int p){
    vector<int> v;
    for(auto& e:g[node]){
        if(e.first == p) continue;
        dfs(e.first, node);
        v.push_back(dp[e.first] + e.second);
    }
    if(v.size() < 2) return;
    sort(v.begin(), v.end());
    dp[node] = v[1];
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    for (int i = 0; i < M; i++)
    {
        g[R[i][0]].push_back({R[i][1], L[i]});
        g[R[i][1]].push_back({R[i][0], L[i]});
    }
    dfs(0, 0);
    return dp[0];
}

• Subtask 1: 46 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11