sm oopd2 [flow charts 2]

8/12/2019 Sm Oopd2 [Flow Charts 2]

1/12

FLOW CHARTS

It is a chart showing flow of logic involved in solvingthe problem.It is defined for an algorithm.It can also be defined as the diagrammaticrepresentation of an algorithm.It is also defined as a visual or graphical representationof an algorithm.

It is easy to understand and analyze the problem.It is an useful aid for programmers and system analysts.It is machine independent. They can be used for anytype of logic


2/12

Symbols used in Flowcharts

Name Symbol Function

TerminalTo indicate begin and end in a flowchart

Input/output Input or output data or information

Processing Calculations, data manipulation orinformation processing

LoopingProcesses a group of instructionsrepeatedly

Decision A comparison or decision which leads theflow of control to take alternate paths

Predefined

process

Group of operations not listed in the particular flowchart

Connector An entry from or an exit to another part ina flowchart

Flow Direction Represents the direction of flow of control


3/12

Start

Read A, B, C

A>B

A>C B>C

Print A Print CPrint B Print C

Stop

Flowchart to find the largest of 3 numbers


4/12

Q Show using flowchart how to find the average height of boys and average heightof girls in the class.

Ans:

t_b_h total boys height

t_g_h total girls height

t_b total no of boys

t_g total no of girls

a_v_b average height of boys

a_v_g average height of girls

n total no of students

n1 no of boys and girls after each iteration

code=0 (for girl)

code=1 (for boy)


5/12

start

read roll no , code , height

t_b_h 0t_b 0

t_g_h 0t_g 0n 10

a_v_g 0a_v_b 0

n1 0

code =1

t_b_h t_b_h + heightt_b t_b + 1n1 n1 + 1

t_g_h t_g_h + heightt_g t_g +1n1 n1+1

A

B

Y N


6/12

A

n1=nB

a_v_b t_b_h / t_b

a_v_g t_g_h / t_g

Print a_v_b , a_v_g

Stop


7/12

To find largestof n numbersusing 2 memorylocations num1and num2

Read n , num1

Start

repeat till 4 ,till n = 1

read num2

num1 num2num2>num1

n n-1

Print num1

stop

4


8/12

Q) Draw a flowchart to count the number of non-zero numbers in aseries of 10 numbers. Start

nzd 0,i=1

repeat till 4 ,till i=11

enter d

d=0 nzd nzd + 1

i i+1

Print nzd

stop

4


9/12


10/12

Draw a flowchart to find the sum of the first 50natural numbers


11/12

Draw a flowchart for computing factorial of N


12/12

EXERCISESWrite an algorithm and draw a flow chart for the following problems 1. Read a number N and print all its divisors.2. Compute the sum of the digits of any given number3. Find the sum of given N numbers.4. Sum of squares of integers from 1 to 505. Print the Message Hello on the Screen. 6. Display a Triangle of * on the screen.7. Perform the different arithmetic Operations.

8. Evaluate the area of the circle Area = Pi * R*R9. Convert the time in seconds to hours, minutes and seconds. (1 hr =3600 sec).10. Find the sum of the digits of a four-digit number (ex 1234 sum=10).11. Convert temperature given in Fahrenheit to Centigrade and Centigrade to

Fahrenheit (C=5/9(F-32)).

12. Converting distance in mm to cm, inch, feet (1 cm =10mm, 1inch=2.5cm, 1 feet=12 inches).13. Compute n th Fibonacci no.14. Generate Fibonacci series up to n.15. Covert binary number to decimal.16. Convert decimal number (Positive) to binary.

sm oopd2 [flow charts 2]

Documents