Fair Candy Swap

export function fairCandySwap(aliceSizes: number[], bobSizes: number[]): number[] {
  const totalAliceSize = aliceSizes.reduce((acc, size) => acc + size, 0);
  const totalBobSize = bobSizes.reduce((acc, size) => acc + size, 0);
 
  const difference = (totalAliceSize - totalBobSize) / 2;
  const bobSizeSet = new Set(bobSizes);
 
  for (const aliceSize of aliceSizes) {
    const bobSize = aliceSize - difference;
    if (bobSizeSet.has(bobSize)) {
      return [aliceSize, bobSize];
    }
  }
  return [-1, -1];
}