Leetcode 605.种花问题

种花问题

假设你有一个很长的花坛,一部分地块种植了花,另一部分却没有。可是,花卉不能种植在相邻的地块上,它们会争夺水源,两者都会死去。

给定一个花坛(表示为一个数组包含0和1,其中0表示没种植花,1表示种植了花),和一个数 。能否在不打破种植规则的情况下种入 朵花?能则返回True,不能则返回False。

示例 1:

输入: flowerbed = [1,0,0,0,1], n = 1

输出: True

示例 2:

输入: flowerbed = [1,0,0,0,1], n = 2

输出: False

注意:

  1. 数组内已种好的花不会违反种植规则。
  2. 输入的数组长度范围为 [1, 20000]。
  3. n 是非负整数,且不会超过输入数组的大小。

思路

 1 public class Solution {
 2     public boolean canPlaceFlowers(int[] flowerbed, int n) {
 3         int i = 0, count = 0;
 4         while (i < flowerbed.length) {
 5             if (flowerbed[i] == 0 && (i == 0 || flowerbed[i - 1] == 0) && (i == flowerbed.length - 1 || flowerbed[i + 1] == 0)) {
 6                 flowerbed[i] = 1;
 7                 count++;
 8             }
 9             i++;
10         }
11         return count >= n;
12     }
13 }

原文地址:https://www.cnblogs.com/kexinxin/p/10381416.html

时间: 2024-08-06 20:50:24

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