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Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. Ex…

CentOS（Community ENTerprise Operating System）是Linux发行版之一，它是来自于Red Hat Enterprise Linux依照开放源代码规定释出的源代码所编译而成。RedHat Enterprise Linux （RHEL）是企…

Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were ins…

Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra space for…

Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocat…

Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that t…

Given a 32-bit signed integer, reverse digits of an integer. Assume we are dealing with an environment which could only store integers with…

Given a string, find the length of the longest substring without repeating characters. Explanation: The answer is "abc", with the length of…

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their n…