Function pickTwoDifferentDigits

src/utils.ts:34–54

(
	digits: string[],
	rng: () => number
)

}

export function pickTwoDifferentDigits(
	digits: string[],
	rng: () => number
): [string, string] {
	if (digits.length < 2) throw new Error('Need at least 2 different digits')

	const d1 = pickDigit(digits, rng)
	let d2 = pickDigit(digits, rng)
	let guard = 0

	while (d2 === d1 && guard++ < 20) {
		d2 = pickDigit(digits, rng)
	}

	if (d1 === d2) {
		const filtered = digits.filter((d) => d !== d1)
		d2 = pickDigit(filtered, rng)
	}

	return [d1, d2]
}

export function pickThreeDifferentDigits(
	digits: string[],