pku_smile

摘要： 标题：Add Binary通过率：25.1%难度：简单Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100".本题主要就是模拟二进制去处理，跟上次做到... 阅读全文

摘要： 标题：Count and Say通过率：25.8%难度：简单The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"... 阅读全文

摘要： 标题：Valid Sudoku通过率:27.2%难度：简单Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where... 阅读全文

摘要： Write a program to find the node at which the intersection of two singly linked lists begins.For example, the following two linked lists:A: a... 阅读全文

摘要： 标题：Remove Nth Node From End of List通过率：28.5%难度：简答Given a linked list, remove thenthnode from the end of list and return its head.For example, Given ... 阅读全文

摘要： 标题：Implement strStr()通过率：21.8%难度：简单Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of ... 阅读全文

摘要： 标题：Pascal's Triangle II通过率：29.8%难度：简单Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you ... 阅读全文

摘要： 标题：Valid Palindrome通过率：21.9%难度：简单Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For exam... 阅读全文

摘要： 标题：Length of Last Word通过率：28.8%难度：简单Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last wor... 阅读全文

摘要： 标题：Excel Sheet Column Title通过率：17.3%难度：简单Given a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1... 阅读全文