Algorithms and Flowcharts
- 1. Subject:- Algorithms and Flowcharts SHREE SWAMI ATMANAND SARASWATI INSTITUTE OF TECHNOLOGY Civil-2 1 Prepared by, Lalji Shiyani students of ssasit
- 2. INDEX2
- 3. Basic of algorithms Define and use the three constructs for developing algorithms: sequence, decision, and repetition. Understand and use three tools to represent algorithms: flowchart, pseudocode, and structure chart. Understand the concept of modularity and subalgorithms. List and comprehend common algorithms. Understand the concept of an algorithm. 3
- 4. Informal definition of an algorithm used in a computer 4
- 5. Finding the largest integer among five integers5
- 6. Defining actions in Find Largest algorithm 6
- 7. Advantages of algorithms it eases identification and removal of logical errors in a program. It facilitates algorithm analysis to find out the most efficient solution to a given problem. It ensures easy comprehension of a problem solution as compared an equivalent computer program. 7
- 8. Disadvantages of algorithms In large algorithms, the flow of program control becomes difficult to track. Algorithms lack visual representation of programming constructs like flowcharts; thus, understanding the logic becomes relatively Difficult. 8
- 9. Flowcharts A graphical represention of analgorithm,often used in the design phase of programming to work out the logical flow of a program. Visual way to represent the information flow Make our logic more clear Help during writing of program Make testing and debugging easy 9
- 10. Symbol Name Uses Start and stop symbol Used to start flw chart as wel as to to terminate the flow chart. Input/output Used for ID operation Process Usedto mention ALU and data transfer task(i.e. arithmetic or assignment task) start stop 10
- 11. Symbol Name Uses decidsion For branching condition Flow lines Indicates flow 11
- 12. Flowcharts for three constructs12
- 13. Example Write an algorithm and draw a flowchart that will read the two sides of a rectangle and calculate its area. 13
- 15. Flow chart’s limitation For very large program, flow chart goes for many pages Costly to draw flow charts for large program Difficult to modify 15
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