SIMPLE PROGRAMMING FOR C BEGINNERS PART 2

SIMPLE PROGRAMMING FOR C BEGINNERS PART 2

QN1. WRITE A PROGRAM TO  FIND GCD OF ANY TWO NUMBERS .

ANS :- #include<stdio.h>
int main()
{
           int a,b,c:
           printf("enter any twp numbers");
           scanf("%d %d ",& a,&b);
           while((c=a%b)!=0)
           {
                      a=b:
                      b=c:
           }
           printf("%d",b):
}

QN2.   WRITE A PROGRAM  TO DISPLAY ALL NUMBERS FROM 1 TO 100.

ANS :-#include "stdio.h"

int main()

{

        int i,j,n,c;

        for(i=1;i<=100;i++)

        {

                c=0;

                for(j=1;j<=i;j++)

                {

                        if(i%j==0)

                                c++;

                }

                if(c==2)

                        printf("%d ",i);

        }

 }

QN 3. WRITE A PROGRAM TO DISPLAY ALL NUMBER FROM 10 TO 20  THOSE NUMBER SUMMATION OF EACH DIGIT IS A PRIME NUMBER.

ANS :- #include "stdio.h"

int main()

{

        int i,j,n,sum,counter;

        for(i=10;i<=20;i++)

        {

                sum=0;

                n=i;

                while(n>0)

                {

                        sum=sum + n%10;

                        n=n/10;

                }

                counter=0;

                for(j=1;j<=sum;j++)

                {

                        if(sum%j==0)

                                counter++;

                }

                if(counter==2)

                        printf("%d ",i);

        }

}
QN 4. WRITE A PROGRAM TO FIND FIBONACCI  SERIES.

ANS :- #include "stdio.h"

main()

{

        int a=0,b=1,c,n;

        printf("Enter upper limit ");

        scanf("%d",&n);

        do

        {

                c=a+b;

                a=b;

                b=c;

                printf("%d ",c);

        }while(c<=n);

}
QN 5. WRITE A PROGRAM TO DISPLAY ALL NUMBERS THOSE ARE MIISING IN FIBONACCI SERIES.

ANS :- #include "stdio.h"

main()

{

        int i,a=0,b=1,c,n;

        printf("enter upper limit");

        scanf("%d",&n);

        do

        {

                c=a+b;

                a=b;

                b=c;

                for(i=a+1; i<b ;i++)

                        printf("%d ",i);

        }while(c<=n);

}