問題 https://leetcode.com/problems/longest-common-prefix/ 解いた # @param {String[]} strs # @return {String} def longest_common_prefix(strs) data = strs[0] result = "" data.chars.each_with_index do |char, index| if strs.all? { |str| str[in…

問題 https://leetcode.com/problems/combine-two-tables/ 解いた SELECT Person.firstName, Person.lastName, Address.city, Address.state FROM Person LEFT OUTER JOIN Address ON Person.personId = Address.personId 結果 LEFT OUTER JOIN すれば良いで…