leetcode

Solution to some Leetcode problems written in C++

git clone git://git.dimitrijedobrota.com/leetcode.git

1791.cpp (400B)

1 class Solution { 2 public: 3 int findCenter(vector<vector<int>> &edges) { 4 unordered_set<int> us; 5 6 for (auto &p : edges) { 7 if (us.count(p[0])) 8 return p[0]; 9 else 10 us.insert(p[0]); 11 if (us.count(p[1])) 12 return p[1]; 13 else 14 us.insert(p[1]); 15 } 16 return -1; 17 } 18 };