Answer / vadivelt

Do shift the given number left once.
ie., n<<1

Answer / manoj sharma

You can use left bitwise operator.
Say if your no is n then n<<1 will return n*2.

Answer / paramesh

#include<stdio.h>
#include<conio.h>
void main()
{
int a;
printf("Enter the number")
scanf("%d",&a);
printf("%d double number is %d", a,a<<1);
getch();
}

Answer / sandeep

#include<stdio.h>
#include<conio.h>
void main()
{
int num;
printf("Enter a floating point value");
scanf("%f",&num);
printf("Given no is %f and twice of number is %f"num,num-(-num));
getch();
}

Answer / venu

lol, you can't use bitwise operators on double. can be used
only for integers.

Answer / manish soni bca 3rd year jaipu

#include<stdio.h>
#include<conio.h>
void main()
{
int a;
printf("Enter number which you want to
double");
scanf("%d",&a);
printf("THE NUMBER IS %d AND DOUBLE NO IS %
d.",a,a<<1);
getch();//optional to write getch();
}

Differentiate b/w Modify and Update commands giving example.

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How to write a program to receive an integer & find its octal equivalent by using for loop?

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