2015 年 4月 3 日随笔档案 - Seth_L

2015年4月3日

[LinkedIn] Find target number in 2D sorted array (matrix)

摘要： Say I’m given a 2d array where all the numbers in the array are in increasing order from left to right and top to bottom.What is the best way ... 阅读全文

posted @ 2015-04-03 14:33 Seth_L 阅读(105) 评论(0) 推荐(0) 编辑

[LeetCode] Permutations

摘要： /**Solution 1, using recursion. Construct a list of numbers by maintaining what you have now and what is left. Every level you take one elemen... 阅读全文

posted @ 2015-04-03 10:39 Seth_L 阅读(132) 评论(0) 推荐(0) 编辑

[LeetCode] Search for a Range (sorted integers array,find start & end position of a target number)

摘要： /**O(n)的解法，从左到右遍历。**/public class Solution { public int[] searchRange(int[] A, int target) { if(A.length == 0) { return n... 阅读全文

posted @ 2015-04-03 10:01 Seth_L 阅读(160) 评论(0) 推荐(0) 编辑