Question

fibonacci program and pallendrome program in C language

Answer 1

Palindrome number :
---------------------------------
#include
int main ( )
{
int n, reverse =0, temp;

printf("Enter a number to check if it is a palindrome or not\n");

scanf("%d",&n);

temp =n;

while(temp != 0)
{
reverse = reverse*10;
reverse = reverse + temp%10;
temp = temp/10;
}

/*Taking reverse of the given no see reverse no program*/

if (n == reverse)

/* if reverse is same as n*/

printf("%d is a palindrome number. \n", n);

else

printf(" %d is not a palindrome number. \n",n);

return 0;

}

------------------
output:
-------------------
Enter a number to check if it is a palindrome or not
12321
12321 is a palindrome number.
------------------
=======================
-------------------------------------
Fibonacci series using loop:
--------------------------------------
#include
int main ( )
{
int n, first =0, second =1, next, c;
printf("Enter the number of terms\n");
scanf("%d",&n);

printf("First %d terms of Fibonacci series are:-\n",n);

for (c=0;c{
if(c <= 1)
next=c;
else
{
next =first+second;
first=second;
second=next;
/*replaced first no by second & second by addition of first & second by addition of first & second*/
}
printf("%d\n",next);
}
return 0;
}
=======================
-----------------------------------
Fibonacci series using recursion :
-----------------------------------
#include
int Fibonacci (int);
main ( )
{
int n, I =0, c;

printf("Enter the number of terms");
scanf("%d",&n);

printf("First %d terms of Fibonacci series are:- \n",n);

for (c=1; c{
printf ("%d\n",Fibonacci (I));
I++;
}

return 0;
}

int Fibonacci (int n)
{
if (n == 0)
return 0;
else if ( n==1 )
return 1;
else
return ( Fibonacci(n-1)+Fibonacci(n-2) );
/*adding Fibonacci of (n-1) & (n-2) by recursive calling it*/
}
-----------------
output:
------------------
Enter the number of terms
5
First 5 terms of Fibonacci series are:-
0
1
1
2
3

=======================

Answer 2

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Pallendrome program in c programming

#include<stdio.h>

#include<conio.h>

int palendrome (int n);

void main()

{

clrscr();

int n,rev;

printf("enter any number\n");

scanf("%d",&n);

rev= palendrome (n);

if (n==rev)

{

printf(" It is a palendrome");

}

else

{

printf("It is not palendrome");

}

getchar();

}

int palendrome (int n)

{

int x,rev=0;

x=n;

while(x!=0)

{

rev=rev*10;

rev=rev+x%10;

x=x/10;

}

return rev;

}