605. Can Place Flowers

Difficulty: EASY

Solution

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

  flowerbed.forEach((_value, index) => {
    let prev = flowerbed[index - 1];
    let next = flowerbed[index + 1];

    if (!prev && !flowerbed[index] && !next) {
      noAdjacent++;
      flowerbed[index] = 1;
    }
  });

  return noAdjacent >= n;
}

console.log(canPlaceFlowers([1, 0, 0, 0, 1], 1));
console.log(canPlaceFlowers([1, 0, 0, 0, 1], 2));
console.log(canPlaceFlowers([0, 0, 1, 0, 1], 1));
console.log(canPlaceFlowers([1, 0], 1));