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题目要求：Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word inthe string.If the last word does not exist, return 0.Note: A word

题目要求：Given a column title as appear in an Excel sheet, return its corresponding column number.For example:A -> 1B -> 2C -> 3...Z -> 26AA -> 27AB -> 28    接触LeetCode后的碰到的第二道题~

好久没刷LeetCode，昨天随便pick了一道。    题目： Given a string array words, find the maximum value of length(word[i]) * length(word[j]) where the two words do not share common letters. You may assume that each