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Lesson Posted on 14 Sep Exam Coaching/MCA Coaching Tuition/BTech Tuition

Algorithms L1 (Introductory)

Santosh Kumar

I am an experienced, qualified teacher and tutor with over 8 years of experience, teach each and every...

Why Algorithms?Modelling the Problem: Modeling is the art of formulating our application regarding precisely described, well-understood problems. Proper modelling is the key to applying algorithmic design techniques to real-world problems. Adequate modelling can eliminate the need to design or even implement... read more

Why Algorithms?
Modelling the Problem: Modeling is the art of formulating our application regarding precisely described, well-understood problems. Proper modelling is the key to applying algorithmic design techniques to real-world problems. Adequate modelling can eliminate the need to design or even implement algorithms, by relating our application to what has been done before.

Five Representative Problems

- Interval Scheduling
- Weighted Interval Scheduling
- Bipartite Matching
- Independent Set
- Competitive Facility Location

What are Algorithms?
An algorithm is more than a branch of computer science. It is the core of computer science, and, in all fairness, can be said to be relevant to most of science, business, and technology. The very nature of algorithm renders it particularly applicable to those disciplines that benefit from the use of computers, and these are fast becoming an overwhelming majority.
Logic + Control= Algorithm &, Data Structures + Algorithms= Program
An algorithm is a finite sequence of step by step, discrete, clear instructions for solving a particular problem, has input data, and is expected to produce output data, and each instruction can be carried out in a finite amount of time in a deterministic way.
Features of Algorithm:
(A) Input { One or, More}
(B) Output {Zero or, More}
(C) Finiteness { Termination}
(D) Definiteness { Precise definite each step}
(E)Effectiveness
The modern meaning of algorithm is quite similar to that of Recipe, Process, Methods, techniques, Procedure and Routine. An algorithm is a sequence of unambiguous instructions for solving problem, i.e. for obtaining a required output for any legitimate input in a finite amount of time.
A computer program is an implementation of one or more algorithms.

Good Algorithm: - Correctness, Time and Space Efficiency.
Better algorithm:-Lower bonds, Optimality.
Running time T(n): - It is an initial time for efficient execution of an algorithm.
Best case | Lower Bound: - The target is the first element of the array, Make one comparison.
Worst case | Upper Bound:-The target is not in the array or, the aim is at the last position in the collection. Make n comparison in either case.
Average case | Tight Bound:- (Best case+ worst case)/2 = (n+1)/2

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Answered on 21 Jun Exam Coaching/MCA Coaching

Shubhada T.

Trainer

2 years for lateral entry and 3 years for regulaer entry
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Answered on 05 Jul Exam Coaching/MCA Coaching

Siddhartha S.

For better opportunity you should do MCA
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Answered on 02 Jul Exam Coaching/MCA Coaching

How do I be efficient in data structure and algorithms? I am doing my MCA and I have only one year left for preparation.

Kapeel Gupta

Teacher

The answer is practice.
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Answered on 02 Jul Exam Coaching/MCA Coaching

Is it necessary to take a degree of BCA or MCA for making the best programmer in C++ or Java?

Kapeel Gupta

Teacher

Its not necessary but it helps. Degree does not showcase your skills but your knowledge does. As its said a degree is just an eligibility to appear for an interview but your career growth can only come due to your knowledge.
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Answered on 19 Jun Exam Coaching/MCA Coaching

What are the jobs available if I apply for PG (MCA)?

Arun S.

Tutor

Try to do your Pg in which you have done ug
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Answered on 02 Aug Exam Coaching/MCA Coaching

Is MCA degree necessary for a developer job in MNC?

Vivek Rajaurya

No it is not, even i am a MCA degree holder working in a MNC and i have seen so many graduate who did BCA or B.sc they are earning more than MCA people. So the thing which matters the most is experience and learning.
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Answered on 09/09/2017 Exam Coaching/MCA Coaching

K sunil kumar

if u r comfortable with programing and basic concepts of computers and able to learn latest technology in ur own way. Better go for a managment degree.(MBA). u can look for a mangerial post.regardsk sunil kumar
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Answered on 16 Oct Exam Coaching/MCA Coaching

What job can I do after an MCA?

Sonali Shinde

Language Expert

as DBA, as software developer, as analyst
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Answered on 09/06/2017 Exam Coaching/MCA Coaching

Manoj Kumar Vishwakarma

DBA Trainer

when you doing MCA then require to clear one by one Semester with related Subjects.
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