Algorithm & flow chart
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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.
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- 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
- 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 [email protected] www.facebook.com/waseem hassan twitter.com/waseemhassan 456 in.linkedin.com/in/waseemh assan 9567850028
- 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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