#include "migrations.h" #include <bits/stdc++.h> #include <cassert> #include <cstdio> using namespace std; int depth[10005]; int mx = 0; int id = -1; int send_message(int N, int i, int Pi) { depth[i] = depth[Pi] + 1; if(mx < depth[i]) { mx = depth[i]; id = i; } if(i == N - 1) return id; return 0; } std::pair<int, int> longest_path(std::vector<int> S) { return {0, S.back()}; }