Sunday, August 30, 2015

C Programming material ( frequently asked c programs )


Printing numbers from 1 to given number.

Intput:  Enter a number : 10
Output: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Program:

main()
{
          int num,i;
          printf(“Enter a number”);
          scanf(“%d”,&num);
          printf(“printing numbers from 1 to %d\n”,num);
          for(i=1;i<=num;i++)
{
                   printf(“%d “,i);
          }
}

Printing factors of a given number

Intput:  Enter a number : 10
Output: 1, 2, 5, 10

Program:

main()
{
          int num,i;
          printf(“Enter a number”);
          scanf(“%d”,&num);
          printf(“printing factors of %d\n”,num);
          for(i=1;i<=num;i++)
{
          if((num%i)==0)
          {
                   printf(“%d “,i);
          }
          }
}


Printing number of factors of a given number

Intput:  Enter a number : 10
Output: 4

Program:

main()
{
          int num,i,c=0;
          printf(“Enter a number”);
          scanf(“%d”,&num);
         
          for(i=1;i<=num;i++)
{
          if((num%i)==0)
          {
                   c++;
          }
          }
printf(“number of factors of %d are %d”,num,c);
}


Printing sum of the factors of a given number

Intput:  Enter a number : 10
Output: 18

Program:

main()
{
          int num,i,c=0;
          printf(“Enter a number”);
          scanf(“%d”,&num);
         
          for(i=1;i<=num;i++)
{
          if((num%i)==0)
          {
                   c=c+i;
          }
          }
printf(“Sum of factors of %d is %d”,num,c);

}

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