can-place-flowers.java

class Solution {
    public boolean canPlaceFlowers(int[] flowerbed, int n) {
        if(n==0)    return true;
        for(int i=0;i<flowerbed.length;i++){
            if(flowerbed[i]==0 && (i==0||flowerbed[i-1]==0)&&(i==flowerbed.length-1||flowerbed[i+1]==0)){
                n--;
                if(n==0)    return true;
                flowerbed[i]=1;
            }
        }
        return false;
    }
}