Project 1

Program 1

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b, sum;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

sum = a+b;

cout <<“The sum of two numbers is “<<sum;

getch ();

}

 

Output:

Enter the first number: 23

Enter the second number: 31

The sum of two numbers is 54

 

 

 

 

 

Program 2

 

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b,dif;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

dif=a-b;

cout <<“The difference of two numbers is: “<<dif;

getch ();

}

 

Output

Enter the first number: 21

Enter the second number: 14

The difference of two numbers is: 7

 

 

 

Program 3

 

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b,prd;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

prd=a*b;

cout <<“The product of two numbers is “<<prd;

getch ();

}

 

Output

Enter the first number: 14

Enter the second number: 5

The product of two numbers is 70

 

 

 

 

 

Program 4

 

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b,quot;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

quot=a/b;

cout <<“The quotient of two numbers is: “<<quot;

getch ();

}

 

Output

Enter the first number: 45

Enter the second number: 6

The quotient of two numbers is: 7.5.

 

Program 5

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,sqr;

cout <<“Enter a number: “;

cin >>a;

sqr=a*a;

cout <<“The square of “<<a<<” is “<<sqr;

getch ();

}

 

Output

Enter a number: 21

The square of 21 is 441

 

Program 6

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b,ar,pmt;

cout <<“Enter the length of the rectangle: “;

cin >>a;

cout <<“Enter the breadth of the rectangle: “;

cin >>b;

ar=a*b;

pmt=2*(a+b);

cout <<“The area of the rectangle is “<<ar<<” and its perimeter is “<<pmt;

getch ();

}

 

Output

Enter the length of the rectangle: 7

Enter the breadth of the rectnagle: 6

The area of the rectangle is 42 and its perimeter is 26

 

Program 7

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float radius,area;

cout <<“Enter the radius of the circle is: “;

cin >>radius;

area=3.14*radius*radius;

cout <<“The Area of the circle is “<<area;

getch ();

}

Output

Enter the radius of the circle: 7

The Area of the circle is 153.86

 

Program 8

#include<iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x,y,temp;

cout <<“Enter the value of x: “;

cin >>x;

cout <<“Enter the value of y: “;

cin >>y;

temp=x;

x=y;

y=temp;

cout <<“The value of x after swapping is: “<<x;

cout <<“\nThe value of y after swapping is: “<<y;

getch ();

}

Output

Enter the value of x: 45

Enter the value of y: 23

The value of x after swapping is: 23

The value of y after swapping is: 45

 

Program 9

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float p,r,t,sim;

cout <<“Enter the prinical amount of the loan: “;

cin >>p;

cout <<“Enter the rate of interest of the loan: “;

cin >>r;

cout <<“Enter the time period of the loan: “;

cin >>t;

sim = (p*r*t)/100;

cout <<“The simple interest on the loan is: “<<sim;

getch ();

}

 

 

Output

Enter the principal amount of the loan: 10000

Enter the rate of interest of the loan: 4.5

Enter the time period of the loan: 8

The simple interest on the loan is: 3600

 

Program 10

#include <iostream.h>

#include <conio.h>

#include <math.h>

void main ()

{

clrscr ();

float a,b,c,s,area;

cout <<“Enter the three sides of the triangle: “;

cin >>a>>b>>c;

s=(a+b+c)/2;

area=sqrt(s*(s-a)*(s-b)*(s-c));

cout <<“The area of the triangle is: “<<area;

getch ();

}

Output

Enter the three sides of the triangle: 12 23 34

The area of the triangle is: 66.8436

 

Program 11

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b,rem;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

rem = a%b;

cout <<“The remainder is: “<<rem;

getch ();

}

 

Program 12

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int num,f,s,l,temp;

cout <<“Enter a three digit number: “;

cin >>num;

f=num/100;

temp=num%100;

s=temp/10;

l=num%10;

cout <<“The first digit of the number is: “<<f<<“\n”;

cout <<“The second digit of the number is: “<<s<<“\n”;

cout <<“The third digit of the number is: “<<l<<“\n”;

int sum=f+s+l;

cout <<“The sum of the digits of numbers is: “<<sum;

getch();

}

 

 

Program 13

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

char ch;

int num;

cout <<“Enter a character: “;

cin>>ch;

num=ch;

cout <<“The ASCII Code of “<<ch<<” is “<<num;

getch ();

}

 

Program 14

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

char ch;

int num;

cout <<“Enter a ASCII code: “;

cin>>num;

ch=num;

cout <<“The character having to ASCII code “<<num<<” is “<<ch;

getch ();

}

 

Program 15

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

if (a>b)

{

cout <<a<<” is greater than “<<b;

}

if (a<b)

{

cout <<a<<” is smaller than “<<b;

}

if (a==b)

{

cout <<a<<” is equal to “<<b;

}

getch ();

}

 

Program 16

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b;

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

if (a%b==0)

{

cout <<a<<” is divisible by “<<b;

}

else

{

cout <<a<<” is not divisible by “<<b;

}

getch ();

}

 

Program 17

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a;

cout <<“Enter a year: “;

cin >>a;

if (a%4==0)

{

cout <<a<<” is a leap year. “;

}

else

{

cout <<a<<” is not a leap year. “;

}

getch ();

}

 

Program 18

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int  choice;

float num1, num2;

cout <<“Choice 1: For Addition. \n”;

cout <<“Choice 2: For Subtraction. \n”;

cout <<“Choice 3: For Multiplication. \n”;

cout <<“Choice 4: For Division. \n”;

cout <<“Enter your choice: “;

cin >>choice;

cout <<“Enter the first number: “;

cin >>num1;

cout <<“Enter the second number: “;

cin >>num2;

if (choice==1)

{

cout <<“The sum of two numbers is: “<<num1+num2;

}

if (choice==2)

{

cout <<“The difference of two numbers is: “<<num1-num2;

}

if (choice==3)

{

cout <<“The product of two numbers is: “<<num1*num2;

}

if (choice==4)

{

cout <<“The quotient of two numbers is: “<<num1/num2;

}

getch ();

}

 

Program 19

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b,c;

cout <<“Enter the three numbers: “;

cin >>a>>b>>c;

if (a>b)

{

if (b>c)

{

cout <<a<<” is greater than “<<b<<” which is greater than “<<c<<“.”;

}

if (c>b && a>c)

{

cout <<a<<” Is greater than “<<c<<” which is greater than “<<b<<“.”;

}

}

if (b>a)

{

if (a>c)

{

cout <<b<<” is greater than “<<a<<” which is greater than “<<c<<“.”;

}

if (c>a && b>c)

{

cout <<b<<” is greater than “<<c<<” which is greater than “<<a<<“.”;

}

}

if (c>a)

{

if (a>b)

{

cout <<c<<” is greater than “<<a<<” which is greater than “<<b<<“.”;

}

if (b>a && c>b)

{

cout <<c<<” is greater than “<<b<<” which is greater than “<<a<<“.”;

}

}

getch ();

}

 

Program 20

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

char ch;

cout <<“Enter A Character: “;

cin>>ch;

if ((ch>=’A’ && ch<=’Z’) || (ch>=’a’ && ch<=’z’))

{

cout <<ch<<” is an Alphabetic character”;

if (ch>=’A’ && ch<=’Z’)

{

cout <<” and it is an upper case letter. “;

}

if (ch>=’a’ && ch<=’z’)

{

cout <<” and it is a lower case letter. “;

}

else

{

cout <<ch<<” is not an Alphabetic character. “;

}

getch ();

}

 

Program 21

#include <iostream.h>

#include <conio.h>

#include <math.h>

void main ()

{

clrscr ();

float a,b,c,x,y,d;

cout <<“Enter the three coefficient of quadratic equation: “;

cin >>a>>b>>c;

if (a!=0)

{

cout <<“The quadratic equation is: “<<a<<“x^2 + “<<b<<“x + “<<c;

if (b*b-4*a*c>=0)

{

cout <<“\n””The roots of above quadratic equations are real: “;

x= (-b+sqrt(b*b-4*a*c))/2*a;

y= (-b-sqrt(b*b-4*a*c))/2*a;

cout <<“\n””The roots of the above quadratic equations are “<<x<<” and “<<y;

}

else

{

cout <<“\n””There are not real roots for the above quadratic equation. “;

}

}

else

{

cout <<“The above equation is not quadratic i.e. a is zero here  “;

}

getch ();

}

 

Program 22

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

float a,b,c,res;

int ch;

cout <<“Area Menu “”\n”;

cout <<“1. Circle “”\n”;

cout <<“2. Rectangle “”\n”;

cout <<“3. Triangle “”\n”;

cout <<“4. Trapezium “”\n”;

cout <<“\n””Enter Your Choice: “;

cin >>ch;

switch (ch)

{

case 1: cout <<“Enter the radius: “;

cin>>a;

cout <<“The Area of the circle is: “<<3.14*a*a;

break;

case 2: cout <<“Enter the length: “;

cin>>a;

cout <<“Enter the breadth: “;

cin>>b;

cout <<“The Area of the Rectangle is: “<<a*b;

break;

case 3: cout <<“Enter the base length: “;

cin >>a;

cout <<“Enter the altitude: “;

cin >>b;

cout <<“The Area of the Triangle is: “<<0.5*a*b;

break;

case 4: cout<< “Enter the height: ” ;

cin >>a;

cout <<“Enter the parallel sides: “;

cin>>b>>c;

cout <<“The Area of the trapezium is: “<<0.5*a*(b+c);

break;

default: cout <<“Wrong Choice. “;

break;

}

getch ();

}

 

Program 23

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int ch;

float x,y;

cout <<“Choice 1: Fahrenheit to Celsius. “”\n”;

cout <<“Choice 2: Celsius to Fahrenheit. “”\n”;

cout <<“\n””Enter Your Choice: “;

cin >>ch;

switch (ch)

{

case 1: cout <<“Enter the temperature in degree fahrenheit: “;

cin >>x;

y=(x-32)*5/9;

cout <<“The corresponding temperature in degree celsius is: “<<y;

break;

case 2: cout <<“Enter the temperature in degree celsius: “;

cin >>x;

y=(9*x)/5+32;

cout <<“The corresponding temperature in degree fahrenheit is: “<<y;

break;

default : cout <<“Wrong Choice. “;

break;

}

getch ();

}

 

Program 24

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x;

for (x=1;x<=20;x++)

{

cout <<x<<” “;

}

getch ();

}

 

Program 25

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x;

for (x=20;x>=1;x–)

{

cout <<x<<” “;

}

getch ();

}

 

Program 26

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x,y;

for (x=1;x<=25;x++)

{

y=2*x-1;

cout <<y<<” “;

}

getch();

}

 

Program 27

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int r,x,sum=0;

cout <<“Enter the range: “;

cin >>r;

for (x=1;x<=r;x++)

{

sum=sum+x;

}

cout <<“The sum of numbers up to”<<r<<” is: “<<sum;

getch ();

}

 

Program 28

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a=-1,b=1,c,ctr,r,sum=0;

cout <<“Enter the range: “;

cin >>r;

cout <<“The fibonacci series upto “<<r<<“th term is: \n”;

for (ctr=1;ctr<=r;ctr++)

{

c=a+b;

a=b;

b=c;

cout <<c<<” “;

sum = sum+c;

}

cout <<“\nThe sum of terms of fibonacci series upto “<<r<<“th term is: “<<sum;

getch ();

}

 

 

 

Program 29

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int r,x,d=2;

cout<<“Enter the range: “;

cin >>r;

for (x=1;x<=r;x++)

{

d=d-x;

}

cout <<“The difference of natural number upto “<<r<<” is “<<d;

getch();

}

 

Program 30

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int r,x=1,s0=0,s1=0;

cout <<“Enter the range: “;

cin >>r;

while (x<=r)

{

if (x%2==0)

{

s0=s0+x;

}

else

{

s1=s1+x;

}

x++;

}

cout <<“The sum of all odd number up to “<<r<<” is “<<s1;

cout <<“\n””The sum of all even number up to “<<r<<” is “<<s0;

getch ();

}

 

Program 31

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x=1,b,e;

long int p=1;

cout <<“Enter the base number: “;

cin >>b;

cout <<“Enter the exponent: “;

cin>>e;

while (x<=e)

{

p=p*b;

x++;

}

cout <<b<<” to the power “<<e<<” is “<<p;

getch ();

}

 

Program 32

#include <iostream.h>

#include <conio.h>

void main()

{

clrscr ();

long int n,fact=1,x;

cout <<“Enter the number: “;

cin >>n;

x=n;

while (x>=1)

{

fact=fact*x;

x–;

}

cout <<“The factorial of “<<n<<” is “<<fact;

getch ();

}

 

Program 33

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b,x,temp;

cout <<“Enter the two numbers “;

cin >>a>>b;

int y=a;

int z=b;

while (a%b!=0)

{

temp=b;

b=a%b;

a=temp;

}

cout <<“The HCF of “<<y<<” and “<<z<<” is “<<b;

getch();

}

 

Program 34

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int n,x=2,c=2;

cout <<“Enter a number: “;

cin >>n;

while (n%x!=0)

{

c++;

x++;

}

if (c==n)

{

cout <<n<<” is a prime number. “;

}

else

{

cout <<n<<” is not a prime number. “;

}

getch ();

}

 

Program 35

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a,b;

char ch;

do

{

cout <<“Enter the first number: “;

cin >>a;

cout <<“Enter the second number: “;

cin >>b;

cout <<“The sum of two numbers is: “<<a+b;

cout <<“\nDo you Want to continue: “;

cin >>ch;

if (ch==’y’ || ch==’Y’)

{

cout <<“Go again.\n”;

}

else

{

cout <<“Press Enter to exit \n”;

}

} while(ch==’y’ || ch==’Y’);

getch ();

}

Program 36

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int x,y;

char ch;

cout <<“Enter a number: “;

cin >>x;

y=x;

do

{

cout <<“Do you want to enter another number: “;

cin >>ch;

if (ch==’y’ || ch==’Y’)

{

cout <<“Enter another number: “;

cin >>x;

if (x>y)

{

y=x;

}

} }while (ch==’y’ || ch==’Y’);

cout <<“The maximum of the entered number is: “<<y;

getch ();

}

 

Program 37

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int n,sum=0,m;

cout <<“Enter a number: “;

cin >>n;

int x=n;

do

{

m=n%10;

sum=sum+m;

n=n/10;

} while (n!=0);

cout <<“The sum of the digits of “<<x<<” is “<<sum;

getch ();

}

 

 

Program 38

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int n,m,rev=0,i;

cout <<“Enter a range: “;

cin >>n;

i=n;

do

{

m=n%10;

rev=rev*10+m;

n=n/10;

}while (n!=0);

if (rev==i)

{

cout <<“The no. is a palindrome. “;

}

else

{

cout <<“The no. is not a palindrome. “;

}

getch ();

}

Program 39

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int i,j;

for (i=1;i<=13;i++)

{

for (j=1;j<=i;j++)

{

cout <<“$ “;

}

cout <<“\n”;

}

getch ();

}

 

Program 40

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int i,j;

for (i=1;i<=10;i++)

{

for (j=1;j<=i;j++)

{

cout <<j<<” “;

}

cout <<“\n”;

}

getch ();

}

 

Program 41

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

long int a,b[50];

cout <<“Enter A Number: “;

cin >>a;

int i=0,j;

cout <<“The Binary of “<<a<<” is “;

do

{

b[i]=a%2;

i++;

a=a/2;

} while (a/2!=0);

cout <<a;

for (j=i-1;j>=0;j–)

{

cout <<b[j];

}

getch ();

}

 

Program 42

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int r,x,i,m,c;

cout <<“Enter the range: “;

cin >>r;

cout <<“The Armstrong number upto the given range are: “;

for (i=1;i<=r;i++)

{

x=i,c=0;

do

{

m=x%10;

c=c+m*m*m;

x=x/10;

}while (x!=0);

if (i==c)

{

cout <<c<<” “;

}

}

getch ();

}

 

Program 43

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int r,i,c,x;

cout <<“Enter the range: “;

cin>>r;

cout <<“The prime number up to “<<r<<” is: \n”;

for (i=1;i<=r;i++)

{

x=2;

c=2;

while (i%x!=0)

{

x++;

c++;

}

if (c==i)

{

cout <<c<<”  “;

}

}

getch ();

}

 

Program 44

#include <iostream.h>

#include <conio.h>

float sum(float m,float n);

void main ()

{

clrscr ();

float a,b;

cout <<“Enter the two number: “;

cin >>a>>b;

cout <<“The sum of the two numbers is: “;

sum(a,b);

getch ();

}

float sum(float x,float y)

{

cout <<x+y;

}

 

Program 45

#include <iostream.h>

#include <conio.h>

float cube(float no);

void main ()

{

clrscr ();

float num;

cout <<“Enter a number: “;

cin >>num;

cout <<“The cube of “<<num<<” is “;

cube(num);

getch ();

}

float cube(float x)

{

cout <<x*x*x;

}

 

Program 46

#include <iostream.h>

#include <conio.h>

int swap(int& m, int& n);

void main ()

{

clrscr ();

int a,b;

cout <<“Enter the value of a: “;

cin >>a;

cout <<“Enter the value of b: “;

cin >>b;

swap (a,b);

cout <<“After swapping the value of a: “<<a<<” and b: “<<b;

getch ();

}

int swap(int &x, int&y)

{

int temp;

temp =x;

x=y;

y=temp;

}

 

Program 47

 

#include <iostream.h>

#include <conio.h>

#include <math.h>

void main ()

{

clrscr ();

float a,sqt;

cout <<“Enter a number: “;

cin >>a;

sqt=sqrt(a);

cout <<“The square root of “<<a<<” is “<<sqt;

getch ();

}

 

Output

Enter a number: 196

The square root of 196 is 14

 

Program 48

#include <iostream.h>

#include <conio.h>

void main ()

{

clrscr ();

int a;

cout <<“ENTER NUMBER OF WEEK’S DAY (1-7): “<<\n<<”THE  DAY IS”;

cin >>a;

switch (a)

{

case 1: cout<<“IT IS MONDAY”;

break;

case 2: cout <<“IT IS TUESDAY”;

break;

case 3: cout <<“IT IS WEDNESDAY”;

break;

case 4:cout <<“IT IS THRUSDAY”;

break;

case 5:cout <<“IT IS FRIDAY”;

break;

case 6:cout <<“IT IS SATURDAY”;

break;

case 7:cout <<“IT IS SUNDAY”;

break;

default: cout <<“WRONG NUMBER OF DAY “;

break;

}

getch ();

}

OUTPUT

ENTER THE OF WEEK’S DAY(1-7)= 2

AND THE IS =  Tuesday

 

 

 

 

 

 

 

 

 

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