public/subjects/ispowerof2.en.md

ispowerof2

Instructions

Write a program that determines if a given number is a power of 2.

This program must print true if the given number is a power of 2, otherwise it prints false.

• If there is more than one or no argument the program should print nothing.

• When there is only one argument, it will always be a positive valid int.

Usage :

student@ubuntu:~/ispowerof2$ go build
student@ubuntu:~/ispowerof2$ ./ispowerof2 2 | cat -e
true$
student@ubuntu:~/ispowerof2$ ./ispowerof2 64
true
student@ubuntu:~/ispowerof2$ ./ispowerof2 513
false
student@ubuntu:~/ispowerof2$ ./ispowerof2
student@ubuntu:~/ispowerof2$ ./ispowerof2 64 1024
student@ubuntu:~/ispowerof2$