UrbanPro

Learn C Language from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Why do we use srand ((time (NULL))?

Asked by Last Modified  

Follow 1
Answer

Please enter your answer

You need to under the concept and definition of function and you must visualize how does it work.Before going to srand, try to see subset of it, its rand1. rand -- provide random number generator (as its int, so range falls under 0 - 327672. srand - its "seed"random number - that means used to set the...
read more

You need to under the concept and definition of function and you must visualize how does it work.
Before going to srand, try to see subset of it, its rand
1. rand -- provide random number generator (as its int, so range falls under 0 - 32767
2. srand - its "seed"random number - that means used to set the starting value (seed), for generating. So, its set seed(1) as default and on top of it rand() generates random number between seed and range <32 ,767>
3. Time - is every changing at every second, just think if you are sending current time vallue as seed -> to srand (which initializes) -> inturn -> rand() get calls. Now, the range of random generation number is less.
4. So instead of some static integer , as end user we want to supply, make use of the computer's internal clock to controlthe choice of the seed.

Hope it helps.

 

read less
Comments

Related Questions

Who created C?
The C was primarily created by Dennis Ritchie, an American computer scientist, in the early 1970s while working at Bell Labs. C was designed as a system programming language, initially for building utilities...
Srinivasan
0 0
8
How do I start learning C programming and finish it in one month?
Please follow the book "C Programming" by Detal & Detal. Its an applied book easy to understand compare to others. U may also learn through online free tutorial.
Pallavi
0 0
8
What is the use of header files in C language?
In summary, header files in C serve as a means of organizing code, providing function prototypes and shared declarations, promoting modularity, and facilitating code reuse. They are essential in large...
Kamal
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Basics Of C And C++
C++ is powerful, highly flexible, and adaptable programming language that allows software engineers to organise and process information quickly and effectively. But this high-level language is relatively...

Memory Layout of C Programs
A typical memory representation of C program consists of following sections. Text Segment: A text segment, also known as a code segment or simply as text, is one of the sections of a program in an object...

Some interview questions and answers for fresher level on Pointers
What is a void pointer? Void pointer is a special type of pointer which can reference or point to any data type. This is why it is also called as Generic Pointer. As a void pointer can point to...

C Programming basics
C PROGRAMMING BASICS 10 Hours Introduction to ‘ C’ programming –fundamentals – structure of a ‘C’...
O

Om K.

0 0
0

C Program-String Comparison
// WAP to compare strings entered by the user //Header files #include<stdio.h>#include<conio.h>#include<string.h> //Main function void main(){ char str1; char str2; int comp; //Function...

Recommended Articles

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...

Read full article >

Whether it was the Internet Era of 90s or the Big Data Era of today, Information Technology (IT) has given birth to several lucrative career options for many. Though there will not be a “significant" increase in demand for IT professionals in 2014 as compared to 2013, a “steady” demand for IT professionals is rest assured...

Read full article >

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for C Language Classes?

The best tutors for C Language Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn C Language with the Best Tutors

The best Tutors for C Language Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more