This document discusses algorithms and flowcharts. It provides an example of creating an algorithm to find the largest of two numbers and representing it as a flowchart. It also includes contact information for Baabtra-Mentoring Partner, the division of Baabtra System Technologies that provides mentoring programs.

2. Disclaimer: This presentation is prepared by trainees of
baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt .
Ltd

3. Typing Speed
Week
Target Achieved
1
21
19
2
24
21
3
25
22
4
25
23

4. Jobs Applied
#
Company
Designation
Applied Date
1
cs3Infomat Pvt. Ltd
Software trainee
13-9-2013
2
3
Current Status

5. Algorithm & flowchart
Waseem hassan
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hassan
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6. Algorithm
• An algorithm is just a detailed sequence of
simple steps that are needed to solve a
problem
Flowchart
• Flowchart is the graphical representation of an
algorithm

7. Steps to create an algorithm
• First produce a general algorithm
• Refine the algorithm successively to get step
by step detailed algorithm that is very close to
a computer language.

8. Pseudo code
• Pseudo code:Pseudo code is an artificial
and informal language that helps
programmers to develop algorithms.
Pseudo code is very similar to everyday
English.
• Input a set of 4 marks
• Calculate their average by summing and dividing by 4
• if average is below 50
Print “FAIL”
else
Print “PASS”

9. Detailed Algorithm
Step 1:
Step 2:
Step 3:
Input M1,M2,M3,M4
GRADE (M1+M2+M3+M4)/4
if (GRADE < 50) then
Print “FAIL”
else
Print “PASS”
end

10. Flowchart Symbols
Name
Symbol
Use in Flowchart
Oval
Denotes the beginning or end of the program
Parallelogram
Denotes an input operation
Rectangle
Denotes a process to be carried out
e.g. addition, subtraction, division etc.
Diamond
Denotes a decision (or branch) to be made.
The program should continue along one of
two routes. (e.g. IF/THEN/ELSE)
Hybrid
Denotes an output operation
Flow line
Denotes the direction of logic flow in the program

11. Example
START
Input
M1,M2,M3,M4
GRADE
N
(M1+M2+M3+M4)/4
If
GRADE<50
PRINT
“pass”
Y
PRINT
“FAIL”
STOP
Step 1: Input M1,M2,M3,M4
Step 2:
GRADE (M1+M2+M3+M4)/4
Step 3:
if (GRADE <50) then
Print “FAIL”
else
Print “PASS”
end

12. Example
ALGORITHM
Step 1:
Step 2:
Step 3:
Input A,B
if (A> B) then
MAX A
else
MAX B
end
Print “The largest value is”, MAX

13. • The expression A>B is a logical expression
• it describes a condition we want to test
• if A>B is true (if A is greater than B) we take the action on left
• print the value of A
• if A>B is false (if A is not greater than B) we take the action
on right
• print the value of B

14. Flowchart
START
Input
A,B
Y
MAX
N
if
A>B
MAX
A
Print
“The largest value is”, MAX
STOP
B

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