leetcode

Solution to some Leetcode problems written in C++

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

2924.cpp (336B)

1 class Solution { 2 public: 3 int findChampion(int n, const vector<vector<int>> &edges) const { 4 bitset<128> bs; 5 for (const auto &edge : edges) 6 bs.set(edge[1]); 7 if (bs.count() + 1 != n) return -1; 8 for (int i = 0; i < n; i++) 9 if (!bs.test(i)) return i; 10 return -2; 11 } 12 };