Submission #1263271

#	Time	Username	Problem	Language	Result	Execution time	Memory
1263271		DeltaStruct	Traffic (IOI10_traffic)	C++20	Compilation error	0 ms	0 KiB

traffic

#include <bits/stdc++.h>
using namespace std;

int res = 2e9;
int dfs(vector<vector<int>>& G,int x,int p,int s,vector<int>& A){
  int m = 0,r = s-A[x]; for (int y:G[x]) if (y!=p){
    int t = dfs(G,y,x,s,A); r -= t,m = max(m,t);
  }
  res = min(res,max(m,r));
  return s-r;
}

int LocateCentre(int n,vector<int> A,vector<int> B,vector<int> C){
  vector<vector<int>> G(n); for (int i(0);i < n-1;++i) G[B[i]].emplace_back(C[i]),G[C[i]].emplace_back(B[i]);
  dfs(G,0,-1,accumulate(A.begin(),A.end(),0),A);
  return res;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cceBUA25.o: in function `main':
grader.cpp:(.text.startup+0xef): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status