You are given an array of equal-length strings words. Assume that the length of each string is n.
Each string words[i] can be converted into a difference integer array difference[i] of length n - 1 where difference[i][j] = words[i][j+1] - words[i][j] where 0 <= j <= n - 2. Note that the difference between two letters is the difference between their positions in the alphabet i.e. the position of 'a' is 0, 'b' is 1, and 'z' is 25.
"acb", the difference integer array is [2 - 0, 1 - 2] = [2, -1].All the strings in words have the same difference integer array, except one. You should find that string.
\n\nReturn the string in words that has different difference integer array.
\n
Example 1:
\n\n\nInput: words = ["adc","wzy","abc"]\nOutput: "abc"\nExplanation: \n- The difference integer array of "adc" is [3 - 0, 2 - 3] = [3, -1].\n- The difference integer array of "wzy" is [25 - 22, 24 - 25]= [3, -1].\n- The difference integer array of "abc" is [1 - 0, 2 - 1] = [1, 1]. \nThe odd array out is [1, 1], so we return the corresponding string, "abc".\n\n\n
Example 2:
\n\n\nInput: words = ["aaa","bob","ccc","ddd"]\nOutput: "bob"\nExplanation: All the integer arrays are [0, 0] except for "bob", which corresponds to [13, -13].\n\n\n
\n
Constraints:
\n\n3 <= words.length <= 100n == words[i].length2 <= n <= 20words[i] consists of lowercase English letters.给你一个字符串数组 words ，每一个字符串长度都相同，令所有字符串的长度都为 n 。
每个字符串 words[i] 可以被转化为一个长度为 n - 1 的 差值整数数组 difference[i] ，其中对于 0 <= j <= n - 2 有 difference[i][j] = words[i][j+1] - words[i][j] 。注意两个字母的差值定义为它们在字母表中 位置 之差，也就是说 'a' 的位置是 0 ，'b' 的位置是 1 ，'z' 的位置是 25 。
\"acb\" 的差值整数数组是 [2 - 0, 1 - 2] = [2, -1] 。words 中所有字符串 除了一个字符串以外 ，其他字符串的差值整数数组都相同。你需要找到那个不同的字符串。
请你返回 words中 差值整数数组 不同的字符串。
\n\n
示例 1：
\n\n\n输入：words = [\"adc\",\"wzy\",\"abc\"]\n输出：\"abc\"\n解释：\n- \"adc\" 的差值整数数组是 [3 - 0, 2 - 3] = [3, -1] 。\n- \"wzy\" 的差值整数数组是 [25 - 22, 24 - 25]= [3, -1] 。\n- \"abc\" 的差值整数数组是 [1 - 0, 2 - 1] = [1, 1] 。\n不同的数组是 [1, 1]，所以返回对应的字符串，\"abc\"。\n\n\n
示例 2：
\n\n\n输入：words = [\"aaa\",\"bob\",\"ccc\",\"ddd\"]\n输出：\"bob\"\n解释：除了 \"bob\" 的差值整数数组是 [13, -13] 以外，其他字符串的差值整数数组都是 [0, 0] 。\n\n\n
\n\n
提示：
\n\n3 <= words.length <= 100n == words[i].length2 <= n <= 20words[i] 只含有小写英文字母。\\u7248\\u672c\\uff1a \\u7f16\\u8bd1\\u65f6\\uff0c\\u5c06\\u4f1a\\u91c7\\u7528 \\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\"],\"java\":[\"Java\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u88ab\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n \\u5305\\u542b Pair \\u7c7b: https:\\/\\/docs.oracle.com\\/javase\\/8\\/javafx\\/api\\/javafx\\/util\\/Pair.html <\\/p>\"],\"python\":[\"Python\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982\\uff1aarray<\\/a>, bisect<\\/a>, 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