1. Flowchart

2. Flowchart:
It is a diagram consists of symbolic block that represents the algorithm step by step
Symbols of flowchart:
Terminal (start, stop)
Input / output
Processing
Flow: concerned with direction
Decision: for logic comparison
Connector
Off-page connector

3. Flowchart: Ex: draw the flowchart for this algorithm: Begin
start
stop
Read name, mark
print name, new_mark
New_mark = mark+5
Ex: draw the flowchart for this algorithm:
Begin
startstopRead name, markprint name, new_markNew_mark = mark+5
input name, mark
new_mark = mark+5
print name, new_mark
End

4. studentcount = studentcount +1
Flowchart:
start
stop
print name, new_mark
studentcount =1
new_mark = mark + 5
studentcount = studentcount +1 A
studentcount <= 10
Read name, mark
Ex: draw the flowchart for this algorithm:
Begin
studentcount =1
if studentcount > 10 then Stop
else
read name, mark
calculate new_mark = mark + 5
print name, new_mark
studentcount = studentcount +1
goto step 3

5. Flowchart: F = x2 –y + x else if (L=0) then F = 2x + y
start
Write F
x2 –y + x
L=0
stop
Read x, y, L
(x / y) + 10
L< 0
2x + y
yes No
Ex:
Draw a flowchart to compute:
F = x2 –y + x L<0
2x + y L=0
(x / y) L>0
start
read x, y, L
if (L<0) then
F = x2 –y + x
else
if (L=0) then
F = 2x + y
F = (x / y) + 10
write F
stop

6. Flowchart:
Ex:
Trace the following flowchart to find the value of max and min variable for 4 numbers order as follows (x = 4, 2, 1, 3)?
start
Read n
Max=x
Min=x b
stop
I = I +1
I<=n
Read x
I = 2 A
Max<x
Min>x
Max = x
Min = x
yes No

7. Flowchart:
Ex:
Read name for student, when name="xxx" stop the program, if name does not equal "xxx" then compute the grade of every student. Every student has five courses. The average for the student courses has to be computed and there by the grade is given.
Avg > = > grade = 'A'
80 < =Avg < > grade = 'B'
70 < =Avg < > grade = 'C'
60 < =Avg < > grade = 'D'
Avg < > grade = 'F'

8. if ((avg >=80) and (avg < 90)) then grade = 'B'
Sol:
Start
read name
while (name != "xxx") do
begin
total = 0
for count = 0 to 5 do
read mark
total = total + mark
end
avg = total / 5
if ( avg >= 90) then
grade = 'A'
else
if ((avg >=80) and (avg < 90)) then
grade = 'B'
if ((avg >=70) and (avg < 80)) then
grade = 'C'
if ((avg >=60) and (avg < 70)) then
grade = 'D'
Grade = 'F'
Write name, grade
stop

9. ((avg >=80) and (avg < 90))
start
Read name
total= 0
Count= 0
Name = "xxx" B A
stop
yes No
Read mark
total= total + mark
count= count + 1
count < 5
avg = total / 5
avg > = 90
((avg >=80) and (avg < 90))
((avg >=70) and (avg < 80)
((avg >=60) and (avg < 70))
Write name, grade C
Grade='A'
Grade='B'
Grade='C'
Grade='D'
Grade='F'