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【LeetCode】Rotate Image
You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?思路:先将矩阵转置,然后将第一列与最后...
分类:其他好文   时间:2014-05-14 03:09:35    阅读次数:225
HDOJ 3339 In Action
最短路+01背包 In Action Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3857    Accepted Submission(s): 1229 Problem Description ...
分类:其他好文   时间:2014-05-13 14:39:21    阅读次数:175
Bone Collector------HDOJ杭电2602(纯01背包问题!!!!!!详解!)
Problem Description Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s , also he went to the grav...
分类:其他好文   时间:2014-05-13 06:58:19    阅读次数:523
矩阵求和--重载运算符
#include //using namespace std; class Matrix { public:     Matrix();     friend Matrix operator+(Matrix &,Matrix &);     friend ostream& operator     friend istream& operator>>(istream&,Matri...
分类:其他好文   时间:2014-05-12 22:39:15    阅读次数:387
【LeetCode】Spiral Matrix
Spiral MatrixGiven a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[...
分类:其他好文   时间:2014-05-12 20:04:43    阅读次数:268
【LeetCode】Spiral Matrix II
Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the following matri...
分类:其他好文   时间:2014-05-12 19:53:23    阅读次数:332
LeetCode Maximal Rectangle
class Solution {public: int maximalRectangle(vector > &matrix) { int rows = matrix.size(); if (rows == 0) return 0; int cols =...
分类:其他好文   时间:2014-05-12 09:54:05    阅读次数:250
【LeetCode】Set Matrix Zeroes
Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?A s...
分类:其他好文   时间:2014-05-12 08:22:51    阅读次数:255
leetcode第一刷_Set Matrix Zeroes
这个题乍一看很简单,实际上还挺有技巧的。我最开始的想法是找一个特殊值标记,遇到一个0,把他所对应的行列中非零的元素标记成这个特殊值,0值保持不变,然后再从头遍历一次,碰到特殊值就转化成0。 问题是这个特殊值怎么确定,题目中没有把取值范围给出,我怀着侥幸的心理用了最大和最小的int,都被揪了出来。。如果找一个不存在于数组中的值,这个复杂度太高了。 有没有其他更好的方法呢?当然有。这个思想很巧妙,...
分类:其他好文   时间:2014-05-12 06:54:39    阅读次数:193
C++异常:no matching function for call to "Matrix(Matrix&)"
C++异常:no matching function for call to "Matrix(Matrix&)"我定义了一个类叫Matrix,其中构造函数explicit Matrix(const Matrix& source);也写了一个方法:Matrix Matrix::myFun(const ...
分类:编程语言   时间:2014-05-10 07:16:04    阅读次数:363
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