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Given a string str, reverse it omitting all non-alphabetic characters.
example：
For str = "krishan", the output should be "nahsirk".For str = "ultr53o?n", the output should be "nortlu".
solution
As a part of this Kata, you need to create a function that when provided with a triplet, returns the index of the numerical element that lies between the other two elements.
The input to the function will be an array of three distinct numbers (Haskell: a tuple).
您需要创建一个函数，当提供三元组时，返回位于其他两个元素之间的数值元素的索引。函数的输入将是一个由三个不同数字组成的数组(Haskell:一个元组)。
example：
gimme([2, 3, 1]) // 0 -> 2 is the number that fits between 1 and 3 and the index of 2 in the input array is 0.gimme([5, 10, 14]) // 1 -> 10 is the number that fits between 5 and 14 and the index of 10 in the input array is 1.
solution
Return the number (count) of vowels in the given string.
We will consider a, e, i, o, u as vowels for this Kata (but not y).
The input string will only consist of lower case letters and/or spaces.
返回给定字符串中元音的数量(count)。输入只包含小写字母或空格
example：
getCount("abracadabra")// 5 solution
Given a string, capitalize the letters that occupy even indexes and odd indexes separately, and return as shown below. Index 0 will be considered even.
给定一个字符串，将占用偶数索引和奇数索引的字母分别大写，并返回如下所示。索引0将被认为是偶数。
example：
capitalize("abcdef")// ['AbCdEf', 'aBcDeF'] solution
Given a list of digits, return the smallest number that could be formed from these digits, using the digits only once (ignore duplicates).
给定一个数字列表，返回可以由这些数字组成的最小数字，只使用这些数字一次(忽略重复)。
example：
minValue ([1, 3, 1]) // return (13)minValue([5, 7, 5, 9, 7]) // return (579)
solution
以上为自己思路供大家参考，可能有更优的思路。
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