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Different Ways to Add Parentheses (M) 题目 Given a string of numbers and operators, return all possible results from computing all the different possibl 阅读全文
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Longest Common Prefix (E) 题目 Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, retu 阅读全文
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Roman to Integer (E) 题目 Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 阅读全文
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Container With Most Water (M) 题目 Given n non-negative integers \(a_1, a_2, ..., a_n\) , where each represents a point at coordinate \((i, a_i)\). n ve 阅读全文
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Regular Expression Matching (H) Given an input string (s) and a pattern (p), implement regular expression matching with support for '.' and '*'. '.' M 阅读全文