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问题描述: Write a function that takes a string of braces, and determines if the order of the braces is valid. It should return true if the string is valid 阅读全文
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问题描述:(将阿拉伯数字转换成罗马数字) Create a function taking a positive integer as its parameter and returning a string containing the Roman Numeral representation o 阅读全文
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问题描述:(找出奇数数组中唯一的偶数,或是偶数数组中唯一的奇数) You are given an array (which will have a length of at least 3, but could be very large) containing integers. The arr 阅读全文
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问题描述: 对输入的str按照sz个数进行分块,若一块内所有数字的立方和是偶数,则倒序;否则,向左移动一位。然后将修改过的块整合到一个字符串,作为输出。 The input is a string str of digits. Cut the string into chunks (a chunk 阅读全文
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问题描述: Write a function, which takes a non-negative integer (seconds) as input and returns the time in a human-readable format (HH:MM:SS) HH = hours, p 阅读全文
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问题描述: you will be given a number and you will need to return it as a string in Expanded Form. For example: NOTE: All numbers will be whole numbers gre 阅读全文
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Write a function that accepts an array of 10 integers (between 0 and 9), that returns a string of those numbers in the form of a phone number. Example 阅读全文
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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 decid 阅读全文