何景明

Given an integer n, return the number of trailing zeroes in n!. Explanation: 3! = 6, no trailing zero. Explanation: 5! = 120, one trailing …

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

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one …

Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input wo…