leetcode

Solution to some Leetcode problems written in C++

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

0771.cpp (471B)

0 class Solution { 1 public: 2 int numJewelsInStones(const string &jewels, const string &stones) const { 3 static const auto convert = [](char c) { return isupper(c) ? c - 'A' : c - 'a' + 26; }; 4 5 static int seen[52]; 6 int res = 0; 7 8 memset(seen, 0x00, sizeof(seen)); 9 for (const char c : jewels) 10 seen[convert(c)] = true; 11 for (const char c : stones) 12 res += seen[convert(c)]; 13 14 return res; 15 } 16 };