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, 9, 4 ]...
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其他好文 时间:
2015-07-15 15:08:07
阅读次数:
253
HDU 2686 Matrix题目链接3376 Matrix Again题目链接题意:这两题是一样的,仅仅是数据范围不一样,都是一个矩阵,从左上角走到右下角在从右下角走到左上角能得到最大价值思路:拆点。建图,然后跑费用流就可以,只是HDU3376这题,极限情况是300W条边,然后卡时间过了2333代...
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其他好文 时间:
2015-07-15 13:03:31
阅读次数:
104
问题描述Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area.For example, given the following ...
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其他好文 时间:
2015-07-15 12:33:46
阅读次数:
92
题目:
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?
题意:
给定一个 n x n 的二维矩阵,来表示一副图像。
把图像旋转90度(顺时针...
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编程语言 时间:
2015-07-14 22:46:32
阅读次数:
320
Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.public class Solution { public void setZeroes(int[][] matr...
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其他好文 时间:
2015-07-14 19:51:10
阅读次数:
105
题意:知道矩阵的前i行之和,和前j列之和(任意i和j都可以)。求这个矩阵。每个格子中的元素必须在1~20之间。矩阵大小上限20*20。思路: 这么也想不到用网络流解决,这个模型很不错。假设这个矩阵的每一行是水管,每一列是水管,每行有出水口流到每一列,这样想比较好理解。然后每行的流量和每列的流量知道....
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其他好文 时间:
2015-07-14 19:51:03
阅读次数:
88
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...
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其他好文 时间:
2015-07-14 19:35:04
阅读次数:
103
Spiral Matrix
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,...
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其他好文 时间:
2015-07-14 17:59:10
阅读次数:
141
blasThe BLAS (Basic Linear Algebra Subprograms) are routines that provide standard building blocks for performing basic vector and matrix operations. ...
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其他好文 时间:
2015-07-14 17:45:50
阅读次数:
106
HDU 2830 Matrix Swapping II (预处理的线性dp)...
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移动开发 时间:
2015-07-14 00:11:21
阅读次数:
202