C interview Programs for TCS

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C interview Programs for TCS..

Answer / subrahmanyam kesana...........

C Programmes

******* Fibonacci series **********

#include<stdio.h>
main()
{
Int n1=0,n2=1,n,counter,fib;
Printf(“enter the length of fibonacc series”);
Scanf(“%d”,&n);
Printf(“the Fibonacci series is:”);
Printf(“%d%d”,n1,n2);
for(counter=1;counter<=n-2;counter++)
{
Fib=n1+n2;
Printf(“%d”,fib);
N1=n2;
N2=fib;
}
}

******* To generate prime number **********

#include<stdio.h>
main()
{
int n,I,j,b;
printf(“enter the value of n”);
scanf(“%sd”,&n);
for(i=1;i<=n;i++)
{
b=0;
for(j=1;j<=i;j++)
{

If(i%j==0)
{
b=b+1;
}
}
If(b===2)
{
Printf(“%d”,i);
}
}
}

*********Calculating sum of the digits********

#include<stdio.h>
main()
{
int n,k,sum=0;
printf(“enter the number that is to be added”);
scanf(“%d”,&n);
while(n!=0)
{
K=n%10;
Sum=sum+k;
N=n/10;
}
Printf(“sum of digits is%d”,sum);
}

********To reverse a number ********

#include<stdio.h>
main()
{
int n,k,rev=0;
printf(“enter the number that is to be reversed”);
scanf(“%d”,&n);
while(n!=0)
{
K=n%10;
rev=rev*10+k;
N=n/10;
}
Printf(“reverse number is%d”,rev);
}

*********Factorial number********

#include<stdio.h>
main()
{
Int num,factorial=1;
Printf(“enter the number”);
Scanf(“%d”,&num);
While(num>0);
{
Factorial=factorial*num;
Num=num-1;
}

Printf(“Factorial is%d”,factorial);
}

********Finding even & odd numbers********

#include<stdio.h>
main()
{
Int n,I;
printf(“enter the values of n”);
scanf(“%sd”,&n);
for(i=1;i<=n;i++)
{
If(i%2==0)
Printf(“%d is even”);
Else
Printf(“%d is odd”);
}
}

********Palindrome number********

include<stdio.h>
main()
{
Int n,n1,r,sum=0;
printf(“enter the number”);
scanf(“%sd”,&n);
n1=n;
while(n>0)
{
r=n%10;
sum=sum*10+k;
n=n/10;
}
If(n1==sum)
Printf(“it is palindrome”);
else
Printf(“it is not a palindrome”);

}

********Armstrong number********

#include<stdio.h>
main()
{
Int n,n1,r,sum=0;
printf(“enter the number”);
scanf(“%sd”,&n);
n1=n;
while(n>0)
{
r=n%10;
sum=sum+(r*r*r);
n=n/10;
}
If(n1==sum)
Printf(“it is Armstrong number”);
else
Printf(“it is not a Armstrong number”);

}