随笔分类 -  String

224. Basic Calculator
摘要：Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parentheses ), the plus + or 阅读全文
posted @ 2019-05-03 11:32 Veritas_des_Liberty 阅读(191) 评论(0) 推荐(0)
916. Word Subsets
摘要：We are given two arrays A and B of words. Each word is a string of lowercase letters. Now, say that word b is a subset of word a if every letter in b  阅读全文
posted @ 2019-04-30 20:48 Veritas_des_Liberty 阅读(218) 评论(0) 推荐(0)
899. Orderly Queue
摘要：A string S of lowercase letters is given. Then, we may make any number of moves. In each move, we choose one of the first K letters (starting from the 阅读全文
posted @ 2019-04-30 18:00 Veritas_des_Liberty 阅读(297) 评论(0) 推荐(0)
856. Score of Parentheses
摘要：Given a balanced parentheses string S, compute the score of the string based on the following rule: () has score 1 AB has score A + B, where A and B a 阅读全文
posted @ 2019-04-29 22:07 Veritas_des_Liberty 阅读(215) 评论(0) 推荐(0)
833. Find And Replace in String
摘要：To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each repla 阅读全文
posted @ 2019-04-29 21:27 Veritas_des_Liberty 阅读(311) 评论(0) 推荐(0)
816. Ambiguous Coordinates
摘要：We had some 2-dimensional coordinates, like "(1, 3)" or "(2, 0.5)". Then, we removed all commas, decimal points, and spaces, and ended up with the str 阅读全文
posted @ 2019-04-28 21:33 Veritas_des_Liberty 阅读(239) 评论(0) 推荐(0)
736. Parse Lisp Expression
摘要：You are given a string expression representing a Lisp-like expression to return the integer value of. The syntax for these expressions is given as fol 阅读全文
posted @ 2019-04-26 19:27 Veritas_des_Liberty 阅读(353) 评论(0) 推荐(0)
696. Count Binary Substrings
摘要：Give a string s, count the number of non-empty (contiguous) substrings that have the same number of 0's and 1's, and all the 0's and all the 1's in th 阅读全文
posted @ 2019-04-25 22:12 Veritas_des_Liberty 阅读(238) 评论(0) 推荐(0)
591. Tag Validator
摘要：Given a string representing a code snippet, you need to implement a tag validator to parse the code and return whether it is valid. A code snippet is 阅读全文
posted @ 2019-04-23 12:46 Veritas_des_Liberty 阅读(343) 评论(0) 推荐(0)
564. Find the Closest Palindrome
摘要：Given an integer n, find the closest integer (not including itself), which is a palindrome. The 'closest' is defined as absolute difference minimized 阅读全文
posted @ 2019-04-22 22:32 Veritas_des_Liberty 阅读(288) 评论(0) 推荐(0)
556. Next Greater Element III
摘要：Given a positive 32-bit integer n, you need to find the smallest 32-bit integer which has exactly the same digits existing in the integer n and is gre 阅读全文
posted @ 2019-04-22 21:37 Veritas_des_Liberty 阅读(283) 评论(0) 推荐(0)
273. Integer to English Words
摘要：Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. Example 1: Input: 123 Output: " 阅读全文
posted @ 2019-04-16 11:21 Veritas_des_Liberty 阅读(172) 评论(0) 推荐(0)
227. Basic Calculator II
摘要：Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negative integers, +, -, *, / operators a 阅读全文
posted @ 2019-04-15 21:21 Veritas_des_Liberty 阅读(151) 评论(0) 推荐(0)