题目要求:Rotate ImageYou are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?代码...
分类:
其他好文 时间:
2015-02-07 21:32:30
阅读次数:
204
题目大意:给你一个全是0的N*N矩阵,每次有两种操作:1将矩阵中一个子矩阵置反,2.查询某个点是0还是1思路:裸的二维线段树#include#include#include #include#include#include#define MOD 1000003#define maxn 4009#de...
分类:
其他好文 时间:
2015-02-07 17:18:39
阅读次数:
199
Spiral MatrixGiven a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following ...
分类:
其他好文 时间:
2015-02-07 17:15:17
阅读次数:
107
Spiral Matrix IIGiven an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example,Given n = 3,You should ret...
分类:
其他好文 时间:
2015-02-07 17:14:43
阅读次数:
82
版权所有,欢迎转载,转载请注明出处,谢谢
Search a 2D Matrix
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:
Integers in each row are sorte...
分类:
其他好文 时间:
2015-02-06 18:56:40
阅读次数:
116
【题目】
Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.
For example,
Given the following matrix:
[
[ 1, 2, 3 ],
[ 4, 5, 6 ],
[ 7, 8, ...
分类:
其他好文 时间:
2015-02-05 11:18:02
阅读次数:
172
Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[ [ 1, 2, 3 ],...
分类:
其他好文 时间:
2015-02-05 10:53:08
阅读次数:
131
首先简略说明绘制图片:
由于canvas.drawBitmap(bitmap, src, dst, paint);有四个参数所以大体有四五步。
1、通过getResource()方法得到drawable文件夹里BitmapDrawable类型的对象
2、将BitmapDrawable类型转化为Bitmap类型的对象
3、创建src, dst,两个长方形,src是指在原图形上截得的图片,ds...
分类:
移动开发 时间:
2015-02-05 09:38:32
阅读次数:
128
【题目】
Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order.
For example,
Given n = 3,
You should return the following matrix:
[
[ 1, 2, 3 ],
[ 8,...
分类:
其他好文 时间:
2015-02-04 23:29:21
阅读次数:
236
机器学习Machine Learning - Andrew NG
courses学习笔记
矩阵和向量及其表示介绍
what are matrices矩阵
matrix is just another way for saying, is a 2D or a two dimensional array.
dimension of the matrix
is going to be ...
分类:
系统相关 时间:
2015-02-04 20:26:35
阅读次数:
197