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# Golang Program to round up the next highest power of 2.

## Examples

For example, **n** = 12 => Next number power of 2 is 16.

For example, **n** = 20 => Next number power of 2 is 32.

**Approach to solve this problem**

**Step 1** − Define method, that accepts a number **n**.

**Step 2** − Iterate k := 1 until k < n.

**Step 3** − In a loop, calculate k << 1.

**Step 4** − At the end, return k.

## Example

package main import "fmt" func NextPowOf2(n int) int{ k := 1 for ;k < n; { k = k << 1 } return k } func main(){ fmt.Printf("Round of highest power of 2 for %d is %d.\n", 20, NextPowOf2(20)) fmt.Printf("Round of highest power of 2 for %d is %d.\n", 16, NextPowOf2(16)) fmt.Printf("Round of highest power of 2 for %d is %d.\n", 131, NextPowOf2(131)) }

## Output

Round of highest power of 2 for 20 is 32. Round of highest power of 2 for 16 is 16. Round of highest power of 2 for 131 is 256.

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