在路上的豆丁

摘要： In a row of dominoes, A[i] and B[i] represent the top and bottom halves of the i-th domino. (A domino is a tile with two numbers from 1 to 6 - one on 阅读全文

摘要： We are given two sentences A and B. (A sentence is a string of space separated words. Each word consists only of lowercase letters.) A word is uncommo 阅读全文

摘要： Given an array A of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including d 阅读全文

摘要： Given an array A of non-negative integers, half of the integers in A are odd, and half of the integers are even. Sort the array so that whenever A[i] 阅读全文

摘要： Given an array A of non-negative integers, return an array consisting of all the even elements of A, followed by all the odd elements of A. You may re 阅读全文

摘要： Given an array A of integers, return true if and only if it is a valid mountain array. Recall that A is a mountain array if and only if: A.length >= 3 阅读全文

摘要： In a list of songs, the i-th song has a duration of time[i] seconds. Return the number of pairs of songs for which their total duration in seconds is 阅读全文

摘要： Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algor 阅读全文

摘要： Koko loves to eat bananas. There are N piles of bananas, the i-th pile has piles[i] bananas. The guards have gone and will come back in H hours. Koko 阅读全文

摘要： A conveyor belt has packages that must be shipped from one port to another within D days. The i-th package on the conveyor belt has a weight of weight 阅读全文