structure diagram (1)

7/25/2019 Structure Diagram (1)

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StructureStructure

DiagramDiagram


2/20

Example of programExample of program#include

#include

/* Define complex double data type */

//typedef complex dcomp;

int main()

{

dcomp i, a, b, c, d, e, p, , !;

// Decla!e complex double "a!iables double x, y;

/* et complex double "a!iable

eual to complex double constant */

i $ dcomp (%., &.);

p!intf('ni $ (.+f, .+f)n', i);

/* est a!ithmetic ope!ations -ith

complex double "a!iables */

a $ i * i;

b $ &. / i;

p!intf('ni*i $ (.+f, .+f)n', a);

p!intf('&/i $ (.+f, .+f)n', b);

/* est mathematical functions usin complex

double "a!iables */

c $ s!t(i); d $ sin(i);

e $ po-(i, %.0);

p!intf('ns!t(i) $ (.+f, .+f)n', c);

p!intf('sin(i) $ (.+f, .+f)n', d);

p!intf('i1%.0 $ (.+f, .+f)n', e);

/* est complex ope!ations */ p $ con2(i);

$ !eal(i);

! $ ima(i);

p!intf('ncon2(i) $ (.+f, .+f)n', p);

p!intf('!eal(i) $ .+fn', );

p!intf('ima(i) $ .+fn', !);

!etu!n %;

3


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Flow ChartsFlow Charts

4 flo-cha!t is a4 flo-cha!t is a

!aphical method of!aphical method of

desc!ibin andesc!ibin an

alo!ithm.alo!ithm.

o see the o"e!allo see the o"e!all

flo- of loicflo- of loic


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SymbolsSymbols

Decision

(loop, selection)

Input / utputInternal process

Function

Start/En!

connector


5/20

"inclu!e #st!io$h%

int main()

&

int number, a,b'*

printf(+Enter a number +)*

scanf(+-!+, .number)*

a ' number b*

printf(+a is -!0n+, a)*

return *

1

Structure 2rogram IStructure 2rogram I

Start

Total = Number + 10

End

Request user

enter number

Print total num


6/20

"inclu!e#st!io$h%

3oi! main()

&

float si!e, perimeter, area*

si!e ' 4$5* perimeter ' 6$7 8 si!e*

area ' si!e 8 si!e*

printf(+Si!e -$4f0n+, si!e)*

printf(+2erimeter -$5f0n+, perimeter)* printf(+9rea -$f0n+, area)*

1

Structure 2rogram IIStructure 2rogram II

Start

End

Print value of side,

perimeter and area

Declaration and

initialiation for side,

perimeter and area


7/20

"inclu!e#st!io$h%

int main(3oi!)

&

int score*

printf(+Insert the amount of score 0n+)*

scanf(+-!+, .score)*

if (score %' :)

&

printf (+Congratulations;0n+)*

1

printf (+


8/20

int main(3oi!)

&

int score*

char gra!e*

printf(+Insert the amount of score 0n+)*

scanf(+-!+, .score)*

if (score %' :)&

gra!e ' =2=*

printf (+Congratulations; 0n+)*

1

else

& gra!e ' =F=*

1

printf (+


9/20

printf(+Input three integers+)*

scanf(+-!-!-!+, .x, .y, .>)*

if (x#y)

&

min ' x*

1

else

&

min ' y*

1

if (> # min)&

min ' >*

1

printf(+?he minimum 3alue is

-!0n+, min)*

request ' inte$ers input

() * %# Noes

print minvalue

( *

min#

min = %min = )

min =

es

No

Selection 2rogram (IF)Selection 2rogram (IF)5!o!am6+7&&(p0).doc
http://program/L4_11(pg65).dochttp://program/L4_11(pg65).doc


10/20

Selection 2rogram (IF)Selection 2rogram (IF)5!o!am6+7&(p).doc

if (score %' @:)

&gra!e ' =9=*

1

else if (score %' @)

&gra!e ' =A=*

1

else if (score %' B)

& gra!e ' =C=*

1

else

&

gra!e ' =F=*

1

Score !

-" #

No.rade = /

Score !

-0 #

.rade =

Score !

0 #

.rade = 2 .rade = &

Print score and $rade

es

es

No

No

es
http://program/L4_12(pg66).dochttp://program/L4_12(pg66).doc


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Selection 2rogram (switch)Selection 2rogram (switch)printf(+Enter a number0n+)*

scanf(+-!+, .n)*

switch (n) &

case

printf(+ne0n+)*

brea*

case 5

printf(+?wo0n+)*

brea*case 4

printf(+?hree0n+)*

brea*

Request user to input c3oice

23oice#

2ase 1

Print

one

Print

t4o

Print

t3ree

2ase 5 2ase ' 2ase 6 2ase "

Print

four

Print

five

default

7nvalid

input

case 6

printf(+Four0n+)*

brea*case :

printf(+Fi3e0n+)*

brea*

!efault

printf(+In3ali! number;0n+)*

1


12/20

a3e a try;;


13/20

9uestion : t!y this9uestion : t!y this#include

void main()

{

int choice;

printf(Welcome to add subtract calculator program\n);

printf(!lease choose one of the follo"ing\n);

printf(. add t"o numbers\n);

printf($. substract t"o numbers\n);

printf(%. e&it\n);printf('our choice \n);

scanf(d*+choice);

s"tich(choice)

{

case add();

brea,;

case $

substract();

brea,;

case %

printf(-han,s for testing m' program\n);

brea,;

/return 0;


14/20

Iteration 2rogramIteration 2rogram#include

int main ("oid){

int data, sum$%;

scanf('d', data);

-hile (data >$ %)

{

sum =$ data;

scanf('d', data);

3

p!intf ('he sum is dn', sum);

!etu!n (%);

3

Start

End

Request user to input data

Declaration for data and sum = 0

Data ! =

0#

Sum = sum + data

Request user to input data

Print sum

es

No


15/20

Iteration 2rogramIteration 2rogram

printf(+ow many numbers you wish to enter +)*scanf (+-!+, .n)*

printf(+0nEnter -! !ecimal numbers+,n)*

!o &

scanf (+-!+, .x)*

if (max # x)

&

max ' x*

1

cnt*

1 while (cnt # n)*

printf (+0naximum 3alue -!0n+, max)*

Request user to input

amount of loopin$ (n

8a) *

data #

8a) = data

Print 8a) value

es

Request user input data

2ount *

n #

2nt + 1

es No

No


16/20

Simple FunctionSimple Function

"inclu!e#st!io$h%

3oi! prnGmessage()

&

printf(+0ta3e a nice !ay;0n+)*

1

int main(3oi!)

&

int n*

printf(+?here is a message for you, 0n+)*

prnGmessage()*

return ()*

1

Start

Declaration for n

Print messa$e

Print messa$e function

End

Start

Print 3ave a nice da%

End

Functionprogram

ainprog


17/20

unctionunction

3oi! prnGmessage(int )

&

int i*

printf (+ere is the message0n+)*

for (i ' * i #* i)

printf (+ a3e a nice !ay;0n+)*1

int main (3oi!)

&

int n*

printf (+?here is a message for you$ 0n+)*

printf (+ow many times !o you want to see it+)*

scanf (+-!+, .n)*

prnGmessage(n)*

return ()*

1

Function

program

ain

program


18/20

?ain p!o!am?ain p!o!am

int main (3oi!)

&

int n*

printf (+?here is a message for you$ 0n+)*

printf (+ow many times you want tosee+)*

scanf (+-!+, .n)*

prnGmessage(n)*

return ()*

1

Start

Declaration for n

Request user input n

Print messa$e function

End


19/20

unction p!o!amunction p!o!am

End

i * end of

loop#

es

print 93ave a nice da%:

i ++

Start

Declaration for i

Print messa$e

No

3oi! prnGmessage(int )

&

int i*

printf (+ere is the message0n+)*

for (i ' * i #* i)

printf (+ a3e a nice !ay;0n+)*

1


20/20

2ractical time;;

structure diagram (1)

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