Course address: https://class.coursera.org/bigdata-002/class/index
The final exam of this course is as follows:
Final-Part 1 of 3: Look & listenanswer:
A pre-clustering clients using locality-sensitive hashing and linking each result of an
Big data can be called an era. This is an irreplaceable trend. The development of cloud data will inevitably accelerate the arrival of the big data era. The future world, thinking, data, and technology will be integrated into various fields,
Ajax usually transmits data through parameters behind the URL, for example, XMLHttpRequest. open ('post', URL, true); when used, its URL parameter contains the data to be submitted, its form such as: http://www.mysite.com/handler.do? Name = 'caocao'
INT-2147483648 ~ 2147483647Long long:-9223372036854775808 ~ 9223372036854775807
Unsigned int 0 ~ 4294967295
Unsigned long 0 ~ 4294967295Unsigned long: 0 ~ 1844674407370955161
And 20! (2,432,902,008,176,640,000) has exceeded the upper limit of
Import Java. math. *; import Java. util. extends; public class main {/*** @ Param ARGs */public static void main (string [] ARGs) {// todo auto-generated method stub1_input = new partition (system. in); bigdecimal one = new bigdecimal (1), eight =
This was a problem with the teacher when I was in college.
In C ++, it is impossible to accurately calculate the factorial of more than 20 using common data types. In the following example, we use an array to implement any factorial of less than 500.
# Region use dataadapter Public static bool executedataadapterinsert (datatable DT, int batchsize) { int COUNT = DT. rows. count; bool flag = false; try { sqlconnection Cn = new sqlconnection (connectionstring ); sqlcommand cmd = new sqlcommand
Use JDBC to process big data and big text
Use JDBC to process Big Data
Basic concept: big data is also called lob (large objects). lob is divided into clob and blob.
COLB is used to store large text
Blob is used to store binary data, such as
When processing large-scale data, such as full-text search, approximate document search, and data mining, RDBMS often cannot meet our needs. So what should we do? One solution is to use batch processing to retrieve data from RDBMS, create an Index
# Include # include # include # include using namespace STD; # define maxn 9999 # define maxsize 10 # define dlen 4 class bignum {PRIVATE: int A [500]; // The number of digits that can be controlled for a large number int Len; // the length of a
// Question: find non-repeated integers among the 0.25 billion integers. The memory is insufficient to accommodate these 0.25 billion integers. # Include # include /* 2 bits are allocated for each number. 00 indicates that the number does not exist.
In fact, McKinsey Global Research predicts that in the next six years, only in the United States may face a shortage of 0.14 million to 0.19 million people with in-depth data analysis capabilities, at the same time, there is a gap of 1.5 million
Introduction
Data exchange and sharing between processes is a very important and practical technology. The development and design of large and medium-sized software are mostly completed by the cooperation of many program designers. Generally,
What is big data? The authoritative definition of IDC is as follows: big data is the data that meets the 4 V (variety, velocity, volume, value, that is, multiple types, large traffic, large capacity, and high value) indicators. IDC's positioning of
Premise: for operations with a large amount of data, it is a waste of resources to operate the database every time data is collected.
The data is collected to the memory table and synchronized to the physical database by updating the large data
First, let's look at a simple N using Recursive Algorithms! Program:
# Include using namespace STD; long FAC (INT); int main () {int N; cout N; long y = FAC (n); cout
Obviously, N in this program has an upper limit. When long occupies 8 bytes,
# Include # Include # Define l 1000000000Class bignum {PRIVATE:Int num [101], Len;Public:Bignum () {num [0] = 0; Len = 0 ;}Friend bignum operator + (bignum A, bignum B ){Int I, L1 = A. Len, L2 = B. Len;Bignum temp;For (I = 0; I If (I> = L1) temp.
Big Data factorial time limit: 3000 MS | memory limit: 65535 kb difficulty: 3
Description
We all know how to calculate a factorial of a number. But if this number is large, how should we calculate it and output it?
Input
/** Modified C source code* 4. Analyze and optimize the C program for calculating the factorial below. The report must be written and the measurement data must be analyzed for support. At the same time, the methods and tools mentioned in the class
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