At this time last year, I learned about DOS batch processing programming. As an exercise question, I wrote a program that uses DOS batch processing to calculate the big data factorial.Program.The implementation of DOS batch processing is as follows:
Now:
1. The data volume of the table to be queried is large;
2. A large amount of data is returned;
Complexity is reflected in:
1. Associate the data of multiple big data tables for query.
2. query conditions are also complex.
For
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When I started learning about iPhone development, I figured out the appstoreProgramHow to achieve this by dynamically capturing content from the server and then displaying it in
Five Positions required by the big data team
Author: chszs, reprinted with note. Blog homepage:Http://blog.csdn.net/chszs
McKinsey believes that the big data team must have five positions:
1) Data hygienists-these people ensure that the data is
# Include # include # include # define Max 1300 # define base 10000 # define baselen 4 using namespace STD; // int countnub = 0; // This big integer class uses the array digital [Max] to represent a big integer; // a digital value indicates the
Original System: centos6.3 kernel 2.6.32 updated to 3.6.9!
If you don't talk nonsense, go directly:
1,Download linux-3.6.9 kernel package Baidu, unzip
2. Kernel configuration (do not copy the usage check box on the network. If this check box is
# Include // 2272848 2010-03-31 18:44:28 accepted 1280 656 Ms 17868 K 609 B C ++ regret# Include # Include Using namespace STD;Const int max = 4498501;
Struct Stu{Int sum;} DF [Max];
Int CMP (stu a, Stu B){Return A. Sum> B. sum;}
Int main (){Int n,
Import Java. math. bigdecimal; import Java. math. biginteger; public class biginter {// default division operation precision, that is, the number of decimal places to be retained Private Static final int default_div_scale = 10; // This class cannot
/* This was written by Professor Zhou shangchao many years ago. I hope to read this article and remember that such a mathematician has been quietly contributing !! Let's give a brief introduction to our professors. during the Cultural Revolution, we
Editor's Note: Microsoft technology Festival (techfest 2012), the largest holiday of the year in the Microsoft Research Institute, was officially opened. This technology festival focuses on "natural human-computer interaction" and "Big Data".
Document directory
1. Extract the IP address with the most visits to Baidu on a certain day from massive log data
2. The search engine records all the search strings used for each search using log files. The length of each query string is
N!
(1)
// To understand the demo, change Max to 4, and use N = 4 as an example // The last sentence shows that B is used to store the results, from high to low; B [max-1] is a single position, B [max-2] is ten, and so on // A and B are stored
# Include int A [1000000]; int main () {int I, J, K, D, Z, N; for (I = 1; I 9) {If (j = D-1) d ++; A [J + 1] = A [J + 1] + A [J]/10; A [J] = A [J] % 10 ;}} if (D> 50) {printf ("over flow! \ N "); Return 0;} else {printf (" % d! = ", I); For (Z = D-
Train of Thought: from simple sorting to the Bitmap Algorithm, to the data de-duplication problem, to the big data processing tool: bloom filter.
Scenario 1: Sort non-duplicate data
@ How to sort the given data (, 6?
Method 1: The basic sorting
Moved to: http://www.wypblog.com/archives/141
Description:
Converts a decimal non-negative integer with a length of more than 100 digits into a binary number.
Input:
Multiple groups of data, each behavior has a decimal
A + B Problem II
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission (s): 123322 Accepted Submission (s): 23706Problem DescriptionI have a very simple problem for you. Given two integers A and B, your job
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