Description
For the given input number, calculate the double of it without using an arithmetic operator.
Input
4
Output
8
C Program
#include <stdio.h>
int main()
{
int num;
printf("Enter a number: ");
scanf("%d",&num);
printf("%d",num<<1);
return 0;
}
C++ Program
#include <iostream>
using namespace std;
int main()
{
int num;
cout<<"Enter a number: ";
cin>>num;
cout<<(num<<1);
return 0;
}
Java
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.print("Enter the number: ");
int num = sc.nextInt();
System.out.println(num<<1);
}
}
Python
num=int(input("Enter a number: "))
print(num<<1)