[Bioinformatics 101] 007. Function Method

Hello! This is Kenneth J Han!

In this post, we are going to look at function (or method).

007. Function Method

Problem

Create a function (or a method) called Factorial.
The Factorial has one integer parameter "num" and returns factorial value of "num".
Calculate the value of 3 factorial, 4 factorial and 5 factorial.

Pseudocode

Factorial(num)
    result ← 1
    WHILE num > 0
        result ← result * num
        num ← num - 1
    RETURN result

result3 ← Factorial(3)
result4 ← Factorial(4)
result5 ← Factorial(5)

PRINT result3, result4, result5

Answer

6  24  120

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[Bioinformatics 101] 006. while loop

Hello! This is Kenneth J Han!

In this post, we are going to look at while loop.

006. WHILE Loop

Problem

Using WHILE Loop, calculate 5! (factorial) .

Pseudocode

num ← 5
result ← 1

WHILE num > 0
    result ← result * num
    num ← num - 1

PRINT result

Answer

120

If you have difficulties solving problem, visit the links below!
Your source code is on ready to serve!

Python source code answer on Github
Java source code answer on Github








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[Bioinformatics 101] 005. for statement

Hello! This is Kenneth J Han!

In this post, we are going to look at for statement.

005. FOR Statement

Problem

Sum all integers from 1 to 10.

Pseudocode

sum ← 0

FOR i ← 1 TO 10
    sum ← sum + i
PRINT sum

Answer

55

If you have difficulties solving problem, visit the links below!
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Python source code answer on Github
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[Bioinformatics 101] 004. if else statement

Hello! This is Kenneth J Han!

In this post, we are going to look at if ... else statement.

004. IF ELSE Statement

Problem

Check whether the variable num1 is multiple of 3 or multiple of 7.

Pseudocode

num1 ← 7

IF num1 % 3 == 0
    PRINT "Multiple of 3"
ELSE IF num % 7 == 0
    PRINT "Multiple of 7"
ELSE
    PRINT "None of them"

Answer

Multiple of 7

If you have difficulties solving problem, visit the links below!
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Python source code answer on Github
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[Bioinformatics 101] 003. Operators

Hello! This is Kenneth J Han!

In this post, we are going to look at basic operators.

003. Operators

Problem

Put 7 in variable "num1", and put 2 in variable "num2".
Then calculate the two operands : "add +", "subtract -", "multiply *", "divide /", "remainder %" and power.

Pseudocode

num1 ← 7
num2 ← 2
PRINT num1 + num2
PRINT num1 - num2
PRINT num1 * num2
PRINT num1 / num2
PRINT num1 % num2
PRINT POW(num1, num2)

Answer

9
5
14
3.5
1
49

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Python source code answer on Github
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[Bioinformatics 101] 002. Working with variables! - What is a variable?

Hello! This is Kenneth J Han!

In this post, we are going to calculate the area of a circle given the radius is 3.

002. Working with variables!

Problem

Calculate the area of a circle given the radius is 3.
The process of calculation should use the variables - r, PI and area.

Pseudocode

r ← 3
PI ← 3.14
area ← r * r * PI

Answer

28.26

If you have difficulties solving problem, visit the links below!
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Python source code answer on Github
Java source code answer on Github








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[Bioinformatics 101] 001. Hello World!

Hello! This is Kenneth J Han! I'm really glad to meet you guys!

From this post, I'll post basic bioinformatics problems.


Problems are given with pseudocode.

This means you can write a code whatever language you want to use.

There are lots of program languages around world.

If you haven't choose your major language, I'll recommend Python, which is easy to learn but very powerful.

001. Hello World!

Problem

Print Hello, Bioinformatics

Pseudocode

PRINT "Hello, Bioinformatics"

Answer

Hello, Bioinformatics

If you have difficulties solving problem, visit the links below!
Your source code is on ready to serve!

Python source code answer on Github
Java source code answer on Github









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Introduction - Recent me - Working as a genomic data analyst

Introduction - Recent me - Working as a genomic data analyst

Hello World!

Hi, this is Kenneth J Han from South Korea.

It's been more than two years since I ended my degree and started working at Macrogen Korea.


From there, I analyze genomic data with computer and build pipeline for big data analysis.


Work as a genome analyst is perfect for me since my major is biological science and I'm fond of doing something with computer.


Starting a blog is one of my dreams and from now on I'll not only post Bioinformatics contents but also write programming language, such as Python/JAVA/C and Web development.


I hope you guys enjoy this site.


See you in the next post :) Bye

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