leetcode

Solution to some Leetcode problems written in C++
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1071.cpp (201B)

1 class Solution { 2 public: 3 string gcdOfStrings(string str1, string str2) { 4 if (str1 + str2 != str2 + str1) return ""; 5 return str1.substr(0, gcd(str1.size(), str2.size())); 6 } 7 };