ICT Lesson 2 - Pseudo Codes and Flow Charts by Aluth.com
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Transcript of ICT Lesson 2 - Pseudo Codes and Flow Charts by Aluth.com
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8/17/2019 ICT Lesson 2 - Pseudo Codes and Flow Charts by Aluth.com
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 1
Pseudo Codes and Flow Charts
Namal Dissanayake
(Pseudo Codes)
( shorthand ) . .
.
( Flow Chart )
/ .
.
/
Start/Stop
/
Input/Output
Process
Decision
Connector
Data Flow
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8/17/2019 ICT Lesson 2 - Pseudo Codes and Flow Charts by Aluth.com
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 2
.
.
x y total .
,
A B mul .
,
Start
Input x,y
Total = x+y
Display Total
Stop
BeginInput x,y
Total = x+y
Display totalEnd
Start
Input a,b
Mul = a*b
Display Mul
Stop
BeginInput a,bMul = a*bDisplay MulEnd
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 3
l w a .
,
r c .
,
Start
Input l,w
a = l*w
Display a
Stop
BeginInput l,wa = l*wdisplay aEnd
Start
Input r
= 2 ∗ ∗
Display c
Stop
BeginInput r
= 2 ∗ ∗
Display cEnd
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 4
a,b,c avg .
,
l h a .
,
BeginInput a,b,cAvg = a+B+C/3Display avgEnd
=1
2∗ ∗ ℎ
BeginInput l,h
Display aEnd
Start
Input l,h
=1
2 ∗ ∗ ℎ
Display a
Stop
Start
Input a,b,c
Avg = a+b+c/3
Display Avg
Stop
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 5
20% . bill discount
.
,
payment .
,
BeginInput bill
Discount = biil *
Display DiscountEnd
Start
Input bill
Discount = bill *
Display Payment
Stop
Payment = bill - discount
BeginInput bill
Discount = bill *
Payment = bill – discount
Display paymentEnd
Start
Input bill
Discount = bill *
Display Discount
Stop
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 6
marks 50 50 pass 50 fail .
yes
no
,
age 18 adult, 18 child
.
Start
Input marks
IfMarks>= 50
Display “fail”
Display “pass”
Stop
BeginInput marksIf marks>=50 so;Then
Display “pass”Else
Display “fail”End ifEnd
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8/17/2019 ICT Lesson 2 - Pseudo Codes and Flow Charts by Aluth.com
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 8
yes
no
,
M 75 A , 65 B , 50 C , 50 W ,
.
BeginInput TIf>=25 Then
Display “hot”Else
Display “cold”End ifEnd
Start
Input T
IfT>= 25
Display “cold”
Display “hot”
Stop
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 9
,
yes
no
yes
no
yes
no
.
Start
Input M
IfM>= 75
IfM>= 65
IfM>= 50
Display “A”
Display “B”
Display “C”
Stop
Display “W”
BeginInput M
If m>=75Then
Display “A”ElseIf m>= 65Then
Display “B”ElseIf m>=50
Display “C”
ElseDisplay “W”
End ifEnd ifEnd ifEnd
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 10
yes ,
no
.
,
yes
no
Start
Input x,y
IfX> Y
Display “Y”
Display “X”
Stop
BeginInput x,yIf x>yThen
Display “X”Else
Display “Y”End ifEnd
BeginInput x,yIf y>xThen
Display “X”Else
Display “Y”End ifEnd
Start
Input x,y
IfY>X
Display “Y”
Display “X”
Stop
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 12
,
yes
no
yes
no
yes
no
Start
Display “ ”If
ADNO/4Balance =0
If
ADNO/4Balance =1
IfADNO/4
Balance =2
Input ADNO
Display ”
Display “ ”
Stop
BeginInput ADNOIf ADNO/4=0Then
Display “ ”ElesIf ADNO/4=1Then
Display ” “ElseIf ADNO/4=2Then
Display “ ”Else
Display “ ”End ifEnd ifEnd ifend
Display “ ”
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Information and Communication Technology – Namal Dissanayake 077-2444500 Page 13
Microsoft 5 .
yes
,
no
Start
Input “Microsoft”
IfX
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