Given a matrix of m x n elements (m rows, n columns), return all elements o…

题意：给你一个数n，输出n的阶乘n！尾端0的个数。 解题思路：阶乘结果末端的0是由5 * 2、5 * 4、5 * 偶数和10、20、30… 100、200…1000等末尾含0的乘数构成。 其实10…

这个题目李特是屌炸天的。 我飞了九牛二虎之力（路子对），但是代码写的七荤八素，好长好长好长好长的。 结果正解，三四行就搞定了。真是心有不甘啊。 想法如下： 保证p1能胜利，就必须保持所有p2的move都不能赢。 同时，p…

题目 Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together…

54. Spiral Matrix 题目 Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix i…

  Implement atoi to convert a string to an integer. Hint: Carefully consider all possible …

  Additive number is a positive integer whose digits can form additive sequence. A valid additive sequenc…

  Given a string, find the first non-repeating character in it and return it’s index. If it doesn&#…

You are given coins of different denominations and a total amount of money amount. Write a function to compute…

Excel Sheet Column Number Related to question Excel Sheet Column Title Given a column title as appear in an Ex…

1、题目描述 Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. k is …

描述 In MATLAB, there is a very useful function called ‘reshape’, which can reshape a matrix into a …