Implement a function that receives two IPv4 addresses, and returns the number of addresses between them (including the first one, excluding the last one).

All inputs will be valid IPv4 addresses in the form of strings. The last address will always be greater than the first one.

// first version
export function ipsBetweenV1(start: string, end: string): number {
  const reversedStart = start
    .split(".")
    .reverse()
    .map((segment) => parseInt(segment, 10)) as number[]
  const reversedEnd = end
    .split(".")
    .reverse()
    .map((segment) => parseInt(segment, 10)) as number[]

  const amountInStart = reversedStart.reduce((acc, curr, index) => {
    acc += curr * Math.pow(256, index) + 1
    return acc
  })
  const amountInEnd = reversedEnd.reduce((acc, curr, index) => {
    acc += curr * Math.pow(256, index) + 1
    return acc
  })

  return amountInEnd - amountInStart
}

// second version
export function ipsBetweenV2(start: string, end: string): number {
  const getReversedSegments = (ip: string) => {
    return ip
      .split(".")
      .reverse()
      .map((segment) => parseInt(segment, 10)) as number[]
  }
  const calcAmountInIps = (ips: string) => {
    return getReversedSegments(ips).reduce((acc, curr, index) => {
      acc += curr * Math.pow(256, index) + 1
      return acc
    }) as number
  }

  return calcAmountInIps(end) - calcAmountInIps(start)
}

export function ipsBetween(start: string, end: string): number {
  const ipToNumber = (ip: string): number =>
    ip.split(".").reduce((acc, curr, index) => acc * 256 + parseInt(curr, 10), 0);

  return ipToNumber(end) - ipToNumber(start);
}

- Congress establish and fund a Manhattan Project-like program
dedicated to racing to and acquiring an Artificial General Intelligence (AGI) capability.