xuan_abc

摘要： Given a list of positive integers nums and an int target, return indices of the two numbers such that they add up to a target - 30. Conditions: You wi 阅读全文

摘要： Given 2 lists a and b. Each element is a pair of integers where the first integer represents the unique id and the second integer represents a value. 阅读全文

摘要： You have an array of logs. Each log is a space delimited string of words. For each log, the first word in each log is an alphanumeric identifier. Then 阅读全文

摘要： Given a paragraph and a list of banned words, return the most frequent word that is not in the list of banned words. It is guaranteed there is at leas 阅读全文

摘要： There are n servers numbered from 0 to n-1 connected by undirected server-to-server connections forming a network where connections[i] = [a, b] repres 阅读全文

摘要： Given an array of strings products and a string searchWord. We want to design a system that suggests at most three product names from products after e 阅读全文

摘要： Given string S and a dictionary of words words, find the number of words[i] that is a subsequence of S. Example : Input: S = "abcde" words = ["a", "bb 阅读全文

摘要： Given a string with no duplicate characters, return a list with all permutations of the string and all its subsets. Examples Set = “abc”, all permutat 阅读全文

摘要： Given an unsorted integer array, find the subarray that has the greatest sum. Return the sum and the indices of the left and right boundaries of the s 阅读全文

摘要： Given two words word1 and word2, find the minimum number of operations required to convert word1 to word2. You have the following 3 operations permitt 阅读全文