Commit 1580750

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Use bitwise operations in 2024 day 22

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Original file line number	Diff line number	Diff line change
`@@ -7,12 +7,12 @@ object Day22 {`
`7`	`7`	`type Secret = Long`
`8`	`8`
`9`	`9`	`def mix(secret: Secret, value: Secret): Secret = value ^ secret`
`10`		`- def prune(secret: Secret): Secret = secret %16777216 // TODO: bitwise`
	`10`	`+ def prune(secret: Secret): Secret = secret &0xFFFFFF // % 16777216`
`11`	`11`
`12`	`12`	`def nextSecret(secret: Secret): Secret = {`
`13`		`- val secret1 = prune(mix(secret, secret *64))`
`14`		`- val secret2 = prune(mix(secret1, secret1 /32))`
`15`		`- prune(mix(secret2, secret2 *2048))`
	`13`	`+ val secret1 = prune(mix(secret, secret <<6)) // * 64`
	`14`	`+ val secret2 = mix(secret1, secret1 >>5) // / 32, no prune needed after right shift`
	`15`	`+ prune(mix(secret2, secret2 <<11)) // * 2048`
`16`	`16`	`}`
`17`	`17`
`18`	`18`	`def secretIterator(initialSecret: Secret): Iterator[Secret] =`

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