C++ CODES PART#06

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Calculate area of a circle using a=pi*r*r

#include<iostream.h>

#include<conio.h>

void main()

{ clrscr();

float rad;

const float pi=3.14159f;

cout<<"Enter Radious :";

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CONTINUE…

cin>>rad;

float area=pi*rad*rad;

cout<<"Area is :"<<area<<endl;

getch();

}

3

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Output…..

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Do While loop

#include<constream.h>

void main()

{

clrscr();

int a;

a=1;

do

5

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CONTINUE….

{

cout<<a<<endl;a++; }

while (a<11);

getch();}

6

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Output…

7

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Using power function

#include<constream.h>

#include<math.h>

void main()

{clrscr();

int a,b,c;

cout<<"enter the limit upto where you want the series";

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8

Continue….

cin>>a;

for(b=1;b<=a;b++)

{c=pow(b,2);

cout<<c<<" ";}

cout<<"this series is the required one";

getch();}

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9

Output…

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Generate series as shown in the output…

#include<constream.h>

#include<math.h>

void main()

{clrscr();

int a,b,c;

cout<<"enter limit";

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11

Continue…

cin>>a;

for(b=1;b<=a;b++)

{c=2*b*pow(-1,b);

cout<<c<<" ";}

cout<<"this series is the required one";

getch();}

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12

Output….

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13

Generate series as shown in the output…

#include<constream.h>

#include<math.h>

void main()

{clrscr();

int a,b,c;

cout<<"enter the last limit";

cin>>a;COPY RIGHT@

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DEPARTMENT

14

Continue….

for(b=1;b<=a;b++){

c=2*b*pow(-1,b+1);

cout<<c<<" ";}

cout<<"hence this is the required series";

getch();}

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Output…..

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Generate series as shown in the output…

#include<constream.h>

#include<math.h>

void main()

{clrscr();

int a,b,c;

cout<<"enter the last limit";

cin>>a;COPY RIGHT@

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DEPARTMENT

17

Continue…..

for(b=0;b<=a;b++)

{c=pow(3,b);

cout<<c<<" ";}

cout<<"this series is the required one";

getch();}

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18

Output…..

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While loop

#include<constream.h>

void main()

{clrscr();

int n;

while(n!=0)

cin>>n;

cout<<endl;

getch();} COPY RIGHT@ ENGR.SABA MUGHAL FROM

COMPUTER SYSTEMS DEPARTMENT

20

Output…..

• User enters many numbers when he/she enters zero so program terminates

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Generate series as shown in output using while loop

#include<constream.h>

#include<math.h>

void main()

{

clrscr();

int a,b,r;

cout<<"plz enter your limit";COPY RIGHT@

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DEPARTMENT22

Continue….

cin>>b;

a=1;

while(a<=b)

{r=2*a*pow(-1,a+1);

cout<<r<<" ";

a++;}

getch();}COPY RIGHT@

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DEPARTMENT

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Output…..

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24

Generate series as shown in output using while loop

#include<constream.h>

#include<math.h>

void main()

{clrscr();

int a,b,r;

cout<<"enter limit";

cin>>b;COPY RIGHT@

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DEPARTMENT

25

Continue….

a=0;

while(a<b)

{r=pow(3,a);

cout<<r<<" ";

a++;}

getch();}

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Output….

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Generate series as shown in output using while loop

#include<constream.h>

#include<math.h>

void main()

{

clrscr();

int a,b,r;

cout<<"enter the limit";COPY RIGHT@

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DEPARTMENT28

Continue…

cin>>b;

a=1;

while (a<=b)

{r=pow(a,2);

cout<<r<<" ";

a++;}

getch();}

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Output…..

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Do-while loop

#include<constream.h>

void main()

{clrscr();

long dividend,divisor;

char ch;

do

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DEPARTMENT31

Continue…

cout<<"enter dividend:";

cin>>dividend;

cout<<"enter divisor:";

cin>>divisor;

cout<<"quotient is "<<dividend/divisor;

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Continue….

cout<< " , remainder is "<<dividend%divisor;

cout<<" \n do another?(y/n):";

cin>>ch;}

while (ch!='n');

getch();}

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Output…..

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CONCLUSION• NICE WORDINGS….• It is more difficult to stay on top than to get

there. The secret of success is that we never, never give up

• Barish ka Qatra Seepi or Sanp dono kay Munah mein girta hai Jab keh Sanp ussay Zehar bana deta hai aur Seep Usay Moti. Jis ka jaisa "Zarf" waisi Uss ki "Takhleeq".

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