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20 lines
286 B

package main
import (
"fmt"
"os"
"strconv"
)
// computes the logical bitwise AND of its operands.
func isPowerOf2(n int) bool {
return n != 0 && ((n & (n - 1)) == 0)
}
func main() {
if len(os.Args) == 2 {
nbr, _ := strconv.Atoi(os.Args[1])
fmt.Println(isPowerOf2(nbr))
}
}