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