c_lab6

1. Create a function add () with return type as integer. Pass the argument from the main() and return the result in main and display in the main()

Source Code
#include
#include
int add(int a, int b)
{
int sum;
sum=a+b;
return sum;
}
void main()
{
int a, b, sum;
clrscr();
printf("\nEnter two numbers:\t");
scanf("%d%d",&a,&b);
sum=add(a,b);
printf("\nThe sum is \t%d",sum);
getch();
}

Programs Output:-
Enter two numbers: 25 26

The sum is 51


2. Create a function subtract () with return type void. Pass the argument from the main () and display the result in subtract().
Source Code
#include
#include
void subtract(int a, int b)
{
int sub;
sub=a-b;
printf("\nThe subtraction is \t%d",sub);
}
void main()
{
int a, b, sub;
clrscr();
printf("\nEnter two numbers:\t");
scanf("%d%d",&a,&b);
subtract(a,b);
getch();
}

Programs Output:-
Enter two numbers: 15 10

The subtraction is 5



3. Create a function multi() with return type as integer. Declare required variable and take user input. Perform multiplication & return in main()
Source Code
#include
#include
int multi(int a, int b)
{
int prod;
prod=a*b;
return prod;
}
void main()
{
int a, b, prod;
clrscr();
printf("\nEnter two numbers:\t");
scanf("%d%d",&a,&b);
prod=multi(a,b);
printf("\nThe Multiplication is \t%d",prod);
getch();
}

Program Output:-
Enter two numbers: 5 5

The Multiplication is 25


4. Create a function division() wit return type as void. Declared required variables and take user input perform division & display result in division() itself.
Program Code
#include
#include
void division(int a, int b)
{
int div;
div=a/b;
printf("\nThe Division is \t%d",div);

}
void main()
{
int a, b;
clrscr();
printf("\nEnter two numbers:\t");
scanf("%d%d",&a,&b);
division(a,b);
getch();
}


Program Output
Enter two numbers: 25 5

The Division is 5


5. Combine above question and use switch case statement in main() to call function.
Ans:



6. Write programs for factorial using recursive function.
Source Code
#include
#include
long int factorial(int n)
{
if(n==1)
return(1);
else
return(n*factorial(n-1));
}
void main()
{
int num;
clrscr();
printf("\nEnter a number:\t");
scanf("%d",&num);
printf("\nThe factorial is \t%ld",factorial(num));
getch();
}

Program Output:
Enter a number: 5

The factorial is 120


Discussion/Conclusion