小菜刷题史

2014年6月3日

【Leetcode】Letter Combinations of a Phone Number

摘要： Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon... 阅读全文

posted @ 2014-06-03 18:26 小菜刷题史阅读(182) 评论(0) 推荐(0) 编辑

【Leetcode】Count and Say

摘要： The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off as"tw... 阅读全文

posted @ 2014-06-03 16:24 小菜刷题史阅读(159) 评论(0) 推荐(0) 编辑

2014年5月21日

【Leetcode】Sqrt(x)

摘要： Implementint sqrt(int x).Compute and return the square root ofx. 1 class Solution { 2 public: 3 int sqrt(int x) { 4 if (x mid) { // 不要用x ... 阅读全文

posted @ 2014-05-21 12:30 小菜刷题史阅读(109) 评论(0) 推荐(0) 编辑

【Leetcode】Longest Common Prefix

摘要： Write a function to find the longest common prefix string amongst an array of strings. 1 class Solution { 2 public: 3 string longestCommonPrefix(v... 阅读全文

posted @ 2014-05-21 12:00 小菜刷题史阅读(107) 评论(0) 推荐(0) 编辑

【Leetcode】Search for a Range

摘要： Given a sorted array of integers, find the starting and ending position of a given target value.Your algorithm's runtime complexity must be in the ord... 阅读全文

posted @ 2014-05-21 11:42 小菜刷题史阅读(179) 评论(0) 推荐(0) 编辑

【Leetcode】Triangle

摘要： Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol... 阅读全文

posted @ 2014-05-21 11:11 小菜刷题史阅读(136) 评论(0) 推荐(0) 编辑

【Leetcode】Flatten Binary Tree to Linked List

摘要： Given a binary tree, flatten it to a linked list in-place.For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened t... 阅读全文

posted @ 2014-05-21 10:46 小菜刷题史阅读(106) 评论(0) 推荐(0) 编辑

2014年5月20日

【Leetcode】Remove Duplicates from Sorted List II

摘要： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->2->3-... 阅读全文

posted @ 2014-05-20 23:42 小菜刷题史阅读(143) 评论(0) 推荐(0) 编辑

【Leetcode】Reverse Linked List II

摘要： Reverse a linked list from positionmton. Do it in-place and in one-pass.For example:Given1->2->3->4->5->NULL,m= 2 andn= 4,return1->4->3->2->5->NULL.No... 阅读全文

posted @ 2014-05-20 22:44 小菜刷题史阅读(132) 评论(0) 推荐(0) 编辑

【Leetcode】Jump Game

摘要： Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximu... 阅读全文

posted @ 2014-05-20 18:33 小菜刷题史阅读(120) 评论(0) 推荐(0) 编辑

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