Flowcharting and pseudocoding
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This document discusses flowcharting and pseudocoding. It defines a flow chart as using symbols to represent successive steps in a procedure. Pseudocode is defined as a readable textual description of a computer program that is used in developing a program. The document then lists and defines common symbols used in flowcharts like input/output, decision, flowlines, and terminals. It also lists common terms used in pseudocode like accept, display, if, and write. An example pseudocode is provided to demonstrate these concepts.
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The document discusses algorithms and flowcharts. It defines an algorithm as an ordered sequence of steps to solve a problem and notes that algorithms go through problem solving and implementation phases. Pseudocode is used to develop algorithms, which are then represented visually using flowcharts. The document outlines common flowchart symbols and provides examples of algorithms and corresponding flowcharts to calculate grades, convert between units of length, and calculate an area. It also discusses complexity analysis of algorithms in terms of time and space.
Programación no1
Computer source code is written by programmers in a programming language using either the imperative or declarative programming paradigm. Source code is compiled into an executable file that is run on a central processing unit or interpreted with an interpreter. Computer programs are categorized as system software, which runs the computer, or application software, which performs tasks for users. Programs can run simultaneously through multitasking.
Lecture_01-Problem_Solving[1]||ProgrammingFundamental.ppt
Here are the algorithms and flowcharts for the exercises:
1. Algorithm:
Step 1: Input number 1 (N1)
Step 2: Input number 2 (N2)
Step 3: If N1 > N2 then print N1 else print N2
Flowchart:
Start → Input N1 → Input N2 → N1 > N2? → Yes → Print N1 → No → Print N2 → Stop
2. Algorithm:
Step 1: Input radius (R) of circle
Step 2: Calculate area (A) as π * R^2
Step 3: Print the area (A)
Flowchart:
Start → Input R → A =
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Flowcharting and pseudocoding
- 1. Lesson 2 FLOWCHARTING AND PSEUDOCODING
- 2. Flow Chart • A graphic representation of the successive steps in a procedure that system, which usually uses symbols that are interconnected with lines to show sequence or process Pseudocode • A readable description of a computer program in textual form. It is usually used as a Let x = 1st num detailed step in the process of developing a program.
- 3. Input/Output • Indicates any function of an input/output device making data available for processing or causing information available for use.
- 4. Decision • Appoints the program where a comparison is to be made and alternative processing is to occur based upon the results of the comparison.
- 5. Flowlines • Indicates direction of a data.
- 6. Preparation • Used in declaring and initializing identifiers or variables that will be used in the programs.
- 7. Processing • Represents one or more instructions that perform a processing function for the program. Ex. Addition, subtraction, multiplication, division.
- 8. On page connector • Indicates an entry form or an exit to another part of the program flowchart. It is also used to indicate the termination of a comparison operation.
- 9. Terminal • This symbol documents the beginning or end of a program.
- 10. Off page connector • This symbol indicates continuation to or from another page.
- 11. Annotation Symbol • This symbol is used when an additional description is needed.
- 12. Pseudocode Language • Accept – allow data • Close – terminating a program • Compute – mathematical computation • Declare – defining various identifiers • Display – displaying contents • Entry – marking the beginning • Exit – marking the end • If – comparing contents • Move – to copy or moved data • Perform – perform procedure • Start – marking the beginning • Stop – terminating the program execution • Write – for copying the content
- 13. Pseudocode Example Start FN = First Name LN = Last Name Num_St = number and street City = City Tel = Telephone number Input FN, LN Input Num_St, City Input Tel Print FN, LN, Num_St, City, Tel End