Looping statements

While Loop:-

   Program:

Void main()

{

Int t=0, t21,nextterm-0,n;

Clrscr ();

Printf (“Enter a positive number”);

Scanf (“%d”,&n);

Printf(“Fibonacci series:%d,%d,”,t1,t2”);

nextterm=t1+t2;

while(nextterm<=n);

{

Print (“%d,”,nextterm);

t 1=t2;

t2=nextterm;

nextterm=t1+t2;

}

getch();

}

OUTPUT:

Enter a Positive number:	5
Fibonacci series :	0,1,1,2,3,5

 

Do-While:-

A Do-while loop is similar to while loop except the fact it is guranted to execute at one time

Unlike for while loop which test the loop condition at the loop do while loop in c.

 

   Program:

#include<stdio.h>

#include<conio.h>

Void main()

{

Int i=1;

Clrscr();

do

{

Printf (“%d\n”,I );

I=1+2;

}

While(i<10);

getch();

}

OUTPUT:

1 3 5 7 9

 

For loop:-

Executes a sequence of statement multiple times and abbreviate {s} the code that

Manages the loop variable. 

   Program:

Void main()

{

Int I,h;

Clrscr();

Printf(“Enter the vale of n:”);

Scanf(“%d ”,&n);

For(i=1;i<n;i++)

{

Print(“%&d ”,i);

}

getch();

}

OUTPUT:

Enter the value of n=8

1 2 3 4 5 6 7 8