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 @ 2015-03-05 15:24
穆穆兔兔
阅读(143)
评论(0)
推荐(0)
摘要：
Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[ [ 1, 2, 3 ],... 阅读全文
posted @ 2015-03-04 18:41
穆穆兔兔
阅读(159)
评论(0)
推荐(0)
摘要：
Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.思路：和 N-queens 一样，不过只统计个数而言，... 阅读全文
posted @ 2015-03-04 16:54
穆穆兔兔
阅读(162)
评论(0)
推荐(0)
摘要：
Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all distinc... 阅读全文
posted @ 2015-03-04 16:05
穆穆兔兔
阅读(167)
评论(0)
推荐(0)
摘要：
Implement pow(x,n).思路：可以连乘，但会超时，所以使用二分法：注意几点：1 不要写成pow（x, n/2）* pow(x, n/2) 还是会超时，因为还是会计算两遍，直接使用临时变量tmp= pow（x, n/2）,然会return tmp*tmp2 注意int 有可能为负数3 注... 阅读全文
posted @ 2015-03-04 14:41
穆穆兔兔
阅读(207)
评论(0)
推荐(0)
摘要：
Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.http://www.cnblogs.com/easonliu/p/364... 阅读全文
posted @ 2015-03-04 14:12
穆穆兔兔
阅读(222)
评论(0)
推荐(0)
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?思路一：b[i][j] = a[n-1... 阅读全文
posted @ 2015-03-03 14:07
穆穆兔兔
阅读(223)
评论(0)
推荐(0)
摘要：
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm... 阅读全文
posted @ 2015-02-12 17:06
穆穆兔兔
阅读(224)
评论(0)
推荐(0)
摘要：
Given a collection of numbers, return all possible permutations.For example,[1,2,3]have the following permutations:[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,... 阅读全文
posted @ 2015-02-12 16:34
穆穆兔兔
阅读(180)
评论(0)
推荐(0)
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 @ 2015-02-12 11:36
穆穆兔兔
阅读(250)
评论(0)
推荐(0)
浙公网安备 33010602011771号