Submission #662556

#	Time	Username	Problem	Language	Result	Execution time	Memory
662556		esomer	Traffic (IOI10_traffic)	C++17	Compilation error	0 ms	0 KiB

traffic

#include<bits/stdc++.h>
#include "traffic.h"
#include "grader.h"

using namespace std;

#define ll long long
#define endl "\n"

const int MOD = 998244353;

int mn, city, total;

int DFS(int x, vector<int>& v, vector<vector<int>>& adj, int p){
    int subtree = 0;
    int mx = 0;
    for(int node : adj[x]){
        if(node == p) continue;
        int sz = DFS(node, v, adj, x);
        mx = max(mx, sz);
        subtree += sz;
    }
    mx = max(mx, total - sz - v[x]);
    if(mx < mn){
        mn = mx;
        city = x;
    }
    return subtree + v[x];
}

int LocateCentre(int n, int* P, int* S, int* D){
    vector<int> v(n);
    vector<vector<int>> adj(n);
    total = 0;
    for(int i = 0; i < n; i++) {v[i] = P[i]; total += v[i];}
    for(int i = 0; i < n - 1; i++){
        adj[S[i]].push_back(D[i]);
        adj[D[i]].push_back(S[i]);
    }
    mn = 2e9;
    DFS(0, v, adj, -1);
    return city;
}

Compilation message (stderr)

traffic.cpp:3:10: fatal error: grader.h: No such file or directory
    3 | #include "grader.h"
      |          ^~~~~~~~~~
compilation terminated.