#include <traffic.h>
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
using namespace std;
const int N = 100000 + 5;
const int MOD = 1e9 + 7;
vector<int> graph[N];
int dis[N];
bool vis[N];
void dfs(int source, long long int p[]){
vis[source] = 1;
dis[source] = p[source];
for(auto k : graph[source]){
if(!vis[k]) {
dfs(k, p);
dis[source] += dis[k];
}
}
}
int LocateCentre(int n, long long int p[], int s[], int d[]){
for(int i = 0; i < n - 1; ++i){
graph[s[i]].push_back(d[i]);
graph[d[i]].push_back(s[i]);
}
int mn = INT_MAX;
for(int i = 0; i < n; ++i){
dfs(i, p);
int mx = 0;
for(auto k : graph[i])
mx = max(mx, dis[k]);
mn = min(mn, mx);
for(int j = 0; j < n; ++j)
vis[j] = 0;
}
return mn;
}
int main() {
fast;
// freopen("cbarn.in", "r", stdin);
// freopen("cbarn.out", "w", stdout);
int n;
cin >> n;
long long int p[n];
int s[n], d[n];
for(int i = 0; i < n; ++i)
cin >> p[i];
for(int i = 0; i < n - 1; ++i)
cin >> s[i] >> d[i];
cout << LocateCentre(n, p, s, d);
return 0;
}
Compilation message
/tmp/ccGAUaBS.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccI9Iu2j.o:traffic.cpp:(.text.startup+0x0): first defined here
/tmp/ccGAUaBS.o: In function `main':
grader.cpp:(.text.startup+0xd9): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status
