1. Program Flowchart

2. Outline
o
o
o
o
o
o

3. Problem
1.
5
.
Analysis
.
.
Flowchart
.
Input
Program
?
Testing
Output

4. Analysis): 3
•
•
•
Result)
input
(Problem
(Input Data)
(Process)
(Output
Output
Memory

5. 
o
o
2
X, Y
Memory
Sum
1. Input:
2. Process:
Sum = X + Y
3. Output:
Sum
X
X, Y
Y
Sum

6. 
3
o
3
X1, X2, X3
Sum
Mean
1. Input:
o
o
X3
2. Process:
X2 + X3
= Sum/3
3. Output:
Memory
X1
X2
X1, X2,
X3
Sum
Mean
Sum = X1 +
Mean
Mean

7. 
N
= åiN Xi / N)
N
X
o
o
o
1. Input:
2. Process:
N) o
N
)
Sum
N (1
)
)
Mean
X
N
)
X (N
)
(i=1, 2, … ,
Sum = Sum + X
(
(
(
Memory
N
X
Sum
Mean

8. (Flowchart)
)
(

9. start
Read W, L
o
A = W*L
o
o
Print A
end
yes
check
condition
yes
statement (s)
check
condition
no
exit loop
no
statement 1
statement 2

10. Flowchart
(Sequence)
start
Input
Process
Output
end
(
)

11. Flowchart
(Sum)
start
(X, Y)
Input X, Y
Sum = X+Y
Print Sum
end
Memory
X
Y
Sum
50
100
150

12. 1.
2.
1

13. check
condition
statement (s)
yes
no
(Statement)

14. 5
Flowchart
(
x >= 60)
start
Memory
Input ID,X
X
X >= 60
yes
Print ID,X
no
…
end

15. 2
2
yes
statement 1
check
condition
no
statement 2
(Statement 1)

16. 6
2
Flowchart
(Female)
start
(Male)
Input ID,
Name,Gender
Gender= 'M'
no
Print "Female"
end
yes
Print "Male"

17. 3.
n
1
(statement1)
(statement2)
1
2
cond1
no
2
cond2
no
cond3
...
n-1
(statement n-1)
(statement n)
no
n-1condn-1
n
no
statement n
yes
yes
yes
yes
statement1
statement2
statement3
statement n-1

18. 7
start
Input ID
Name,X
Flowchart
X >= 80
Memory
>>>
80-100
A
7079
B
60-69
C
50-59
D
<
50
F
Grade = 'A'
no
X >= 70
ID
Name
yes
yes
Grade = 'B'
no
…
X >= 60
no
X
Grade
…
X >= 50
no
Grade = 'F'
Print Grade
end
yes
yes
Grade = 'C'
Grade = 'D'

19. (Looping)
1.
while
2.
dowhile
3.
for

20. while
check
condition
yes
statement(s)
no
exit loop
(Statement)

21. (
)
(
I = 1, 2, 3,1 , 100)
…
10
1
1
0
start
I = 1, 2, 3, ..., 99,
3
100
1
I=1
I=1
I=1
while I<=100
00I
I=
+1
yes
Print I
I = I+1
no
end

22. Flowchart
(
while)
1+2+...+100
Memory
I
SUM
I = 1, 2,
SUM = 3, ..., 100
start
1+2+3+...+100
3
I=1
I=1
00
I=I+
SUM 1 SUM
SUM
SUM
=0
+I
…
I=1
SUM = 0
while I<100
yes
SUM = SUM+I
I = I+1
no
Print SUM
end

23. do-
while
(Statement)
statement(s)
check
condition
yes
no
exit loop
(

24. 9
Flowchart
(
Memory
1+2+...+100
do-while)
I
SUM
SUM1, 2, 3, ..., start
I = =
100
1+2+3+...+100
3
I=1
I=1
I=1
I=I
00
SUM +1 SUM=
SUM
0
SUM+I
…
SUM = 0
SUM = SUM+I
I = I+1
while I<100
yes
no
Print SUM
24
end24

25. for i=1 to N
i <=
N
statement(s)
i>
N
exit loop
(
(
(i=1)
(i=N)
1
(i = i+1))

26. 10
Flowchart
(
for)
1+2+...+100Memory
I
SUM
= 1,
SUM =2, 3, ..., 100
1+2+3+...+100
start
3
I=1
I=1
00
I=I+
1 for
…
SUM = 0
for I=1 to 100
no
yes
Print SUM
SUM = SUM+I
end

27. 11
Flowchart
Memory
1x2x...x10
I = 1, 2, 3, ..., 10
MUL = 1x2x3x...x10
start
I
MUL
3
I=1
I=1
I=I
0
+1
for
…
MUL = 1
for I=1 to 10
yes
MUL = MUL x I
no
Print MUL
end

28. 12
Flowchart
T(
T=2)
Txi
Memory
T
i
R
i=1, 2, …, 12,
start
Input T
for i=1 to 12
i <=12
…
R=Txi
Print T, i, R
i > 12
end
RR=
TxI =
2x1=2
2x2=4
2x3=6
2x4=8
2 x 5 = 10
2 x 6 = 12
2 x 7 = 14
2 x 8 = 16
2 x 9 = 18
2 x10 = 20
2 x11 = 22
2 x12 = 24

29. 13
Flowchart
N
X2, ..., XN)
Memory
N
X
Sum
Mean
X
(X1,
start
N
(åi= 0 Xi/N)
Sum
Sum
=0
Input N
…
for i=1 to N
i <=
Input N
X
Sum=Sum+X
i>N
Mean = Sum/N
Print Mean
end
N=_
5
60
x1 = 60
_
110
x2 = 50
_
135
x3 = 25
_
x4 = 30
_
165
x5 = 80
_
245
Mean = 245/5 =49