sure0328

摘要： Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be 阅读全文

摘要： Implement wildcard pattern matching with support for '?' and '*'. 所以考虑用回溯。 此博客讲解的很详细，http://blog.csdn.net/u012848330/article/details/52596618 阅读全文

摘要： Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo 阅读全文

摘要： Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 click to show spoilers. Note:The input is assumed to be a 3 阅读全文

摘要： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example,Given 1->2 阅读全文

摘要： Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100". 阅读全文

摘要： Given a non-negative integer represented as a non-empty array of digits, plus one to the integer. You may assume the integer do not contain any leadin 阅读全文

摘要： Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note:You may assume that nums1 has enough space (size tha 阅读全文

摘要： Implement regular expression matching with support for '.' and '*'. 1.p为空，那s必然也为空 2.s为空，看p的第二字符是否为*，为*的话 则为isMatch(s,p.substring(2)); 3.都不为空，p的第二字符为*， 阅读全文

摘要： Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the 阅读全文