[ 问题: ]
Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.
If the last word does not exist, return 0.
[...
分类:
其他好文 时间:
2014-07-22 23:01:35
阅读次数:
331
一次性通过的,比较顺利,从读题到编写到检查到通过,14分50秒,我在不断进步中,相信经过一段时间联系,这种题可以一眼就写出来,不超过5分钟。这道题应该说方法跟
Remove Duplicates from sorted Array挺类似的My Solution: 1 public class Sol...
分类:
其他好文 时间:
2014-05-02 12:56:10
阅读次数:
260
这道题,采用动态规划算法。from top to
down,把到每个节点的最小路径和都求出来。下面是AC代码: 1 /** 2 * Given a triangle, find the minimum path
sum from top to bottom. 3 * Each ...
分类:
其他好文 时间:
2014-05-02 12:19:23
阅读次数:
382
Write an efficient algorithm that searches for
a value in anmxnmatrix. This matrix has the following properties:Integers in
each row are sorted from l...
分类:
其他好文 时间:
2014-05-02 10:41:53
阅读次数:
267
Given a sorted array and a target value, return
the index if the target is found. If not, return the index where it would be if
it were inserted in or...
分类:
其他好文 时间:
2014-05-02 09:54:11
阅读次数:
269
少数次通过 1 public class Solution { 2 public int[]
plusOne(int[] digits) { 3 int[] carry=new int[digits.length+1]; 4 int[]
results=new i...
分类:
其他好文 时间:
2014-05-02 08:23:11
阅读次数:
271
许多次通过,主要是没有考虑到这种情况:“A C ”结尾有多重空格的情况。 1 public class
Solution { 2 public int lengthOfLastWord(String s) { 3 int j, k; 4 if(s == nu...
分类:
其他好文 时间:
2014-05-02 08:21:00
阅读次数:
300
leetcode, Jump Game , 递推求解...
分类:
其他好文 时间:
2014-05-02 05:10:22
阅读次数:
181
Say you have an array for which theithelement
is the price of a given stock on dayi.If you were only permitted to complete at
most one transaction (ie...
分类:
其他好文 时间:
2014-05-02 00:37:20
阅读次数:
349
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees (clockwise).
Follow up:
Could you do this in-place?
刚开始没有思路,但是自己举了几个简单的栗子才看出规律:需要一圈儿一圈儿的变换位置。有两层for循环:外...
分类:
其他好文 时间:
2014-05-01 18:33:34
阅读次数:
359