#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
vector <vector <pair <int, int>>> adj;
vector <int> fin;
int dfs(int u) {
int m = INT_MAX, m1 = INT_MAX;
for (auto [x, y] : adj[u]) {
int u = dfs(x) + y;
if (u < m) {
m1 = m;
m = u;
}
else if (u < m1) {
m1 = u;
}
}
if (m1 == INT_MAX) {
return 0;
}
return m1;
}
int travel_plan(int n, int m, int r[][2], int l[], int k, int p[]) {
adj.resize(n);
fin.resize(n);
for (int i = 0;i < m;i++) {
adj[r[i][0]].push_back({r[i][1], l[i]});
}
return dfs(0);
}
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