摘要： 题目如下： Given an array of 4 digits, return the largest 24 hour time that can be made. The smallest 24 hour time is 00:00, and the largest is 23:59. Star 阅读全文

摘要： 题目如下： In a deck of cards, every card has a unique integer. You can order the deck in any order you want. Initially, all the cards start face down (unr 阅读全文