605. Can Place Flowers

can-place-flowers.ts

function canPlaceFlowers(flowerbed: number[], n: number): boolean {
  let openPlots = 0;

  for (let i = 0; i < flowerbed.length; ++i) {
    if (flowerbed[i] === 1) {
      continue;
    }

    const leftSideFree = (i === 0 || flowerbed[i - 1] === 0);
    const rightSideFree = (i + 1 >= flowerbed.length || flowerbed[i + 1] === 0);

    if (leftSideFree && rightSideFree) {
      flowerbed[i] = 1;

      if ((openPlots += 1) >= n) {
        return true;
      }
    }
  }

  // Handle cases where we never enter the for-loop
  return openPlots >= n;
};