Algorithms and Flowchart

Algorithms

1. A sequential solution of any program that written in human language,called algorithm.
2. Algorithm is first step of the solution process, after the analysis of problem, programmer write the algorithm of that problem.
3. Example of Algorithms:

Q. Write a algorithem to find out number is odd or even?

Ans. 

step 1 : start

step 2 : input number

step 3 : rem=number mod 2

step 4 : if rem=0 then

               print "number even"

           else

               print "number odd"

           endif

step 5 : stop

Flowchart

1. Graphical representation of any program is called flowchart.
2. There are some standard graphics that are used in flowchart as following:

Figure: Start/Stop terminal box

Figure: Input/Output box

Figure: Process/Instruction box

Figure: Lines or Arrows

Figure: Decision box

Figure: Connector box

Figure: Comment box

Figure: Preparation box

Figure: Separate box

Q. Make a flowchart to input temperature, if temperature is less than 32 then print "below freezing" otherwise print  "above freezing"?
Ans.

Figure: Flowchart example of C program

Related programs:

1. Flowchart for search prime number
2. Factorial C program, Algorithm and Flowchart
3. Flowchart for finding Armstrong number
4. Rules for constructing an Algorithm
5. if, if...else, nested if...else, if...else if - statement and flowchart