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Multiplication
uva 442 - Matrix Chain
Multiplication
表示从今以后要好好学习,代码写的太烂了 题目大意是求最少的计算次数,唉。。。 最大收获是学会了求表达式中各部分的优先级 #include < stdio.h > #include < stdlib.h > typedef struct _matrix{ char c;
·
2015-11-11 06:03
Matrix
2014多校第五场1010 || HDU 4920 Matrix
multiplication
(矩阵乘法优化)
题目链接 题意 : 给你两个n*n的矩阵,然后两个相乘得出结果是多少。 思路 :一开始因为知道会超时所以没敢用最普通的方法做,所以一直在想要怎么处理,没想到鹏哥告诉我们后台数据是随机跑的,所以极端数据是不可能会有的,而我们一开始一直在想极端数据能接受的方法。。。。。。后来看了鹏哥的做法,就是把是0的地方都跳过就可以了,用矩阵保存前一个非0数的位置是多少。二师兄给我看了一个代码,人家根本没用别的
·
2015-11-11 04:56
Matrix
leetcode:Multiply Strings(字符串的乘法)【面试算法题】
题目: Given two numbers represented as strings, return
multiplication
of the numbers as a string
·
2015-11-11 03:37
LeetCode
Divide Two Integers —— LeetCode
Divide two integers without using
multiplication
, division and mod operator.
·
2015-11-11 01:44
LeetCode
joj1013 Polynomial
Multiplication
1013: Polynomial
Multiplication
Result TIME Limit MEMORY Limit Run Times AC Times JUDGE
·
2015-11-11 01:38
cat
Leetcode: Multiply Strings
Given two numbers represented as strings, return
multiplication
of the numbers as a string.
·
2015-11-11 01:49
LeetCode
Leetcode: Divide Two Integers
Divide two integers without using
multiplication
, division and mod operator.
·
2015-11-11 01:48
LeetCode
ZOJ 1893 A
Multiplication
Game 【简单博弈】
感觉ZJU上有不少博弈的题目。 这道题目还是比较好理解的,题目大概意思是:两人轮流乘一个2-9的数,从1开始乘,求谁的乘积先大于N。 还是寻找必败点必胜点,不过在这个题目里转换成了寻找必败区间必胜区间的问题 以输入1000为例,我们可以倒着来,每个人除2到9之间的一个数 1000 | 999 ... 112 | 若占住999到112,则对手必
·
2015-11-10 23:28
game
torch中cmul()函数的用法总结
cmul计算的是两个张量tensor1与tensor2之间的element-wise-
multiplication
(数组元素依次相乘或者元素对应相乘)。
木顶思上
·
2015-11-09 19:33
torch
Lua
HappyLeetcode45:Divide Two Integers
26724 Total Submissions: 167045 My Submissions Question Solution Divide two integers without using
multiplication
·
2015-11-09 12:01
LeetCode
hdu 1082 Matrix Chain
Multiplication
Matrix Chain
Multiplication
Time Limit: 2000/1000 MS (Java/Others) Memory Limit
·
2015-11-08 16:18
Matrix
Leetcode OJ : Evaluate Reverse Polish Notation Stack C++ solution
1 #define ADDITION '+' 2 #define SUBSTRACTION '-' 3 #define
MULTIPLICATION
'*' 4 #define DIVISION
·
2015-11-08 16:28
LeetCode
poj 3318 Matrix
Multiplication
随机化算法
方法1:暴力法 矩阵乘法+优化可以卡时间过的。 方法2:随机化 随机构造向量x[1..n],则有xAB=xC;这样可以将小运算至O(n^2). 代码如下: #include<iostream> #include<stdio.h> #include<cmath> #include<algorithm> usin
·
2015-11-08 15:17
Matrix
【LeetCode】29. Divide Two Integers
Divide Two Integers Divide two integers without using
multiplication
, division and mod operator.
·
2015-11-08 11:21
LeetCode
【LeetCode】43. Multiply Strings
Multiply Strings Given two numbers represented as strings, return
multiplication
of the numbers as a
·
2015-11-08 11:10
LeetCode
HDU 1517 A
Multiplication
Game
这个题要找一下规律: 我们假设1为必败点P,则2~9为必胜点,那么10~18又是必败点,19~162又为必胜点,163~324为必败点; 必胜点为m*18^n(m<=9),必败点为m*18^n(m>9); View Code 1 #include<iostream> 2 #include<cstdio> 3 #include<cs
·
2015-11-08 10:16
game
hdu 1517 A
Multiplication
Game 博弈论
思路:求必胜区间和必败区间! 1-9 先手胜 10-2*9后手胜 19-2*9*9先手胜 163-2*2*9*9后手胜 …… 易知右区间按9,2交替出现的,所以每次除以18,直到小于18时就可以直接判断了。 代码如下: 1 #include<cstdio> 2 int main() 3 { 4 double n; 5
·
2015-11-07 14:27
game
POJ 1651
Multiplication
Puzzle
LINK:8-19-小练 POJ 1651 题目:
Multiplication
Puzzle Time Limit:1000MS &
·
2015-11-07 13:51
poj
HDOJ 4920 Matrix
multiplication
(矩阵相乘)
MatrixmultiplicationTimeLimit:4000/2000MS(Java/Others) MemoryLimit:131072/131072K(Java/Others)TotalSubmission(s):3838 AcceptedSubmission(s):1576ProblemDescriptionGiventwomatricesAandBofsizen×n,f
helloiamclh
·
2015-11-07 13:00
TJU2848(Factorial )
Limit: 65536K Total Runs: 1408 Accepted Runs: 411 Robby is a clever boy, he can do
multiplication
·
2015-11-05 08:18
RIA
Divide Two Integers
Divide Two Integers 问题: Divide two integers without using
multiplication
, division and mod operator
·
2015-11-03 21:37
Integer
LeetCode Multiply Strings
Given two numbers represented as strings, return
multiplication
of the numbers as a string.
·
2015-11-02 19:36
LeetCode
POJ 2246 ZOJ 1094 Matrix Chain
Multiplication
(简单题)
Matrix Chain
Multiplication
Time Limit: 1000MS Memory Limit: 65536K Total Submissions
·
2015-11-02 19:58
Matrix
Divide Two Integers
https://leetcode.com/problems/divide-two-integers/ Divide two integers without using
multiplication
,
·
2015-11-02 17:32
Integer
POJ 1651
Multiplication
Puzzle (区间dp)
题目大意:对n个数组成的序列取数,规定最两边不能取,每次取一个a[i],得到 a[l] * a[i] * a[r] 的分数(a[l]是a[i]左边的数,a[r]是a[i]右边的数),并把这个数从序列中移走,求n-2次取数后的得分和的最小值 分析:正着确定状态不好做,不如反着来,设dp[l][r]为向区间[l, r]中填满数所得到分数和的最小值,考虑最近一次填数的位置,不难得出: dp[l][r
·
2015-11-02 16:14
poj
Multiply Strings
Multiply Strings 问题: Given two numbers represented as strings, return
multiplication
of the numbers
·
2015-11-02 14:45
String
ZOJ-1094-Matrix Chain
Multiplication
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=1094 编程任务:对于给定的矩阵相乘顺序,计算矩阵相乘的乘法次数。 注:题目输入的第二部分严格遵守题目中描述的语法 算法分析: 1、 采用递归的方法求解 分两种情况: 遇到左括号‘(’ 表示遇到这种情况:(expr1,expr2),
·
2015-11-02 14:20
Matrix
ZOJ 2316 Matrix
Multiplication
Matrix
Multiplication
Time Limit: 2000ms Memory Limit: 32768KB This problem will be judged on 
·
2015-11-02 12:20
Matrix
UVa 442 (栈) Matrix Chain
Multiplication
题意: 给出一个矩阵表达式,计算总的乘法次数。 分析: 基本的数学知识:一个m×n的矩阵A和n×s的矩阵B,计算AB的乘法次数为m×n×s。只有A的列数和B的行数相等时,两个矩阵才能进行乘法运算。 表达式的处理:可以用一个栈来存储,遇到字母入栈,遇到右括号将栈顶两个元素出栈,然后将乘积入栈。 1 #include <cstd
·
2015-11-02 11:03
Matrix
Core Java Volume I — 3.5. Operators
OperatorsThe usual arithmetic operators +, -, *, / are used in Java for addition, subtraction,
multiplication
·
2015-11-02 11:29
Opera
Contest2073 - 湖南多校对抗赛(2015.04.06)
cid=2073 Problem A: (More)
Multiplication
Time Limit: 1 Sec Memory Limit: 128 MB
·
2015-11-02 10:58
test
matlab学习
matlab程序如下: %Program 0.1 Nested
multiplication
%Evaluates polynomial from nested form using Horner's
·
2015-11-02 10:05
matlab
HDU 1517 (类巴什博奕) A
Multiplication
Game
如果n在[2, 9]区间,那么Stan胜。 如果n在[10, 18]区间,那么Ollie胜,因为不管第一次Stan乘上多少,第二次Ollie乘上一个9,必然会得到一个不小于18的数。 如果n在[19, 162]这个区间呢? 比如说n=19,那么Stan乘上个2,不管Ollie怎么乘,Ollie得到的数必然在[4, 18]这个区间里面,而这里的任意一个数乘上9的话,必然会得到一个不小于19的数
·
2015-11-01 14:12
game
【leetcode刷题笔记】Multiply Strings
Given two numbers represented as strings, return
multiplication
of the numbers as a string.
·
2015-11-01 13:51
LeetCode
SGU 196.Matrix
Multiplication
时间限制:0.25s 空间限制:4M Solution n=10000,m=100000,显然不能用矩阵乘法乘出来。 S= ATA 对于矩
·
2015-11-01 12:44
Matrix
HEU 8002
Multiplication
Puzzle
/**/ /************************************** Problem: HEU 8002
Multiplication
Puzzle
·
2015-11-01 09:20
cat
zoj 1094 Matrix Chain
Multiplication
栈应用
//利用stack计算表达式 //类似计算中序表达式那样,用两个栈,一个存字母,一个存符号 //这题要自己存入*号,要用一个变量储存之前输入的符号,判断是否要把*入栈 //如果前一个符号是(,则不需要。 #include <iostream> #include <stack> #include <cstdio> using namespace st
·
2015-10-31 19:23
Matrix
uva 442 Matrix Chain
Multiplication
//此题其实不是考查矩阵乘法的问题,只是借这个背景来考查栈的运用,注意处理一些细节即可 #include <stdio.h> #include <string.h> #include <algorithm> using namespace std; #define MAX 30 struct matrix {int r,c; ch
·
2015-10-31 19:25
Matrix
POJ 3318 Matrix
Multiplication
输入外挂z
MatrixMultiplicationTimeLimit: 2000MS MemoryLimit: 65536KTotalSubmissions: 17587 Accepted: 3799DescriptionYouaregiventhree n × n matrices A, B and C.Doestheequation A × B = C holdtrue?InputThefirstlin
zp___waj
·
2015-10-31 18:00
C++
poj
Multiplication
Table 二分法
Multiplication
Table time limit per test 1 second memory limit per test 256 megabytes input
·
2015-10-31 16:18
codeforces
leetcode[29]Divide Two Integers
Divide two integers without using
multiplication
, division and mod operator.
·
2015-10-31 16:54
LeetCode
leetcode[43]Multiply Strings
Given two numbers represented as strings, return
multiplication
of the numbers as a string.
·
2015-10-31 16:46
LeetCode
poj 1651
Multiplication
Puzzle
Multiplication
Puzzle Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5095
·
2015-10-31 15:17
poj
ACdream群(167655270)原创群赛(3) 1028 Problem G
Multiplication
1028:
Multiplication
Time Limit: 2 Sec Memory Limit: 128 MB Submit: 547 Solved: 126 [Submit][Status
·
2015-10-31 15:00
cat
acdeream Matrix
Multiplication
D - Matrix
Multiplication
Time Limit: 2000/1000MS (Java/Others) Memory Limit:
·
2015-10-31 14:42
Matrix
HDU 4920 Matrix
multiplication
矩阵相乘。稀疏矩阵
Matrix
multiplication
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072
·
2015-10-31 14:34
Matrix
Divide Two Integers
Divide two integers without using
multiplication
, division and mod operator.
·
2015-10-31 12:05
Integer
Multiply Strings
Given two numbers represented as strings, return
multiplication
of the numbers as a string.
·
2015-10-31 11:40
String
POJ 2505 A
multiplication
game
博弈(给出牛人的解题思路) 先引入必胜点和必败点两个概念: 必败点(P点) :前一个选手(Previous player)将取胜的位置称为必败点。 必胜点(N点) :下一个选手(Next player)将取胜的位置称为必胜点。 算法实现: 步骤1:将所有终结位置标记为必败点(P点);(终结位置指的是不能将游戏进
·
2015-10-31 10:10
game
Multiply Strings
https://leetcode.com/problems/multiply-strings/ Given two numbers represented as strings, return
multiplication
·
2015-10-31 10:48
String
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