摘要：1、题目： #Find the missing letter Write a method that takes an array of consecutive (increasing) letters as input and that returns the missing letter in 阅读全文

摘要：1、题目： You live in the city of Cartesia where all roads are laid out in a perfect grid. You arrived ten minutes too early to an appointment, so you dec 阅读全文

摘要：1、题目： Some numbers have funny properties. For example: 89 --> 8¹ + 9² = 89 * 1 695 --> 6² + 9³ + 5⁴= 1390 = 695 * 2 46288 --> 4³ + 6⁴+ 2⁵ + 8⁶ + 8⁷ = 阅读全文

摘要：1、题目： Count the number of DuplicatesWrite a function that will return the count of distinct case-insensitive alphabetic characters and numeric digits 阅读全文