[第二轮] 2/18-2/24 CareerCup 1.6

今天终于把这题搞懂了，之前一直没明白他为啥要提4bytes，后来想了下，其实就是告诉个最小单元的大小……思路是一样的……

https://gist.github.com/skxie/6a1c8e9b70be62b941d9

补作业，用queue来储存each entry in the matrix
read the matrix row by row and then overwrite the original matrix column by column

but still O(N^2) though

https://gist.github.com/edussx/5004c888e382d962bcd5

https://gist.github.com/ShaneLittleton/5174574

This is my solution

建议大家在这个OJ上提交 可以测试下代码
哈哈 我看了楼上几个代码 其实bug挺多的
http://leetcode.com/onlinejudge#question_48

just to learn the rotation formula http://zh.wikipedia.org/wiki/%E6%97%8B%E8%BD%AC
https://gist.github.com/digiterrush/5628409