Write a program that take command-line argument n and prints a table of the power of 2 that are less or equal to 2^n

[manoj_Thiparapu]

code for this question in for loop

 

[CodeMonkeyJ]

What language? What have you tried? Is there something in particular you don't understand?

 

[VBService]

Over here: "Highest power of 2 less than or equal to given number" you can find a very similar task.
The examples are written in programming languages as seen below

for example, in python it may look like below

def generate_powers_of_two(n):
    # Generates an array of powers of 2 to 2^n
    return [2**i for i in range(n + 1)]

if __name__ == "__main__":
    while True:
        try:
            n = int(input("Enter a number <n>: "))
            if n < 0: raise ValueError
            break
        except ValueError:
            print("The argument <n> must be a non-negative integer.")

    print(f"Powers of 2 less than or equal to 2^{n}:")
    print(generate_powers_of_two(n))

    input("\nPress ENTER to exit.")

or shell scripting

@echo off
setlocal enabledelayedexpansion

:input
set /p n="Enter a number <n>:"
if %n% lss 0 (
    echo The argument <n> must be a non-negative integer.
    goto input
)

set power=1

echo Powers of 2 less than or equal to "2^%n%":

for /L %%i in (0,1,%n%) do (
    echo !power!
    set /a power=power*2
)

echo.
pause