2015年5月16日
Single Number II
摘要： Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp... 阅读全文
posted @ 2015-05-16 22:03 amazingzoe 阅读(108) 评论(0) 推荐(0)
Single Number I
摘要： Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complexity... 阅读全文
posted @ 2015-05-16 21:42 amazingzoe 阅读(125) 评论(0) 推荐(0)
Candy
摘要： There areNchildren standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following requi... 阅读全文
posted @ 2015-05-16 19:42 amazingzoe 阅读(177) 评论(0) 推荐(0)
Gas Station
摘要： There areNgas stations along a circular route, where the amount of gas at stationiisgas[i].You have a car with an unlimited gas tank and it costscost[... 阅读全文
posted @ 2015-05-16 16:15 amazingzoe 阅读(235) 评论(0) 推荐(0)
2015年5月14日
Set Matrix Zeroes
摘要： Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?A s... 阅读全文
posted @ 2015-05-14 22:29 amazingzoe 阅读(140) 评论(0) 推荐(0)
Gray Code
摘要： The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number... 阅读全文
posted @ 2015-05-14 21:52 amazingzoe 阅读(127) 评论(0) 推荐(0)
2015年5月13日
Rotate Image
摘要： You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?分析：先沿对角线进行对折，然后沿水平中... 阅读全文
posted @ 2015-05-13 23:23 amazingzoe 阅读(138) 评论(0) 推荐(0)
Valid Sudoku
摘要： Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ... 阅读全文
posted @ 2015-05-13 17:02 amazingzoe 阅读(171) 评论(0) 推荐(0)
Permutation Sequence
摘要： The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie... 阅读全文
posted @ 2015-05-13 16:26 amazingzoe 阅读(116) 评论(0) 推荐(0)
2015年5月12日
Next Permutation
摘要： Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not possibl... 阅读全文
posted @ 2015-05-12 23:15 amazingzoe 阅读(164) 评论(0) 推荐(0)