文件: root - text - article - 2019 - 12 - find-the-number-of-islands.txt.txt
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 主页 | 类别: 计算机科学 | 211 次阅读, 17177 次搜索 | 125 个单词
| 浏览 | 博客存档
![定阅此目录的博客 定阅此目录的博客](/images/form/rss.gif)
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 主页 | 类别: 计算机科学 | 211 次阅读, 17177 次搜索 | 125 个单词
![定阅此目录的博客 定阅此目录的博客](/images/form/rss.gif)
Hi, here's your problem today. This problem was recently asked by LinkedIn:
Given a 2-dimensional grid consisting of 1's (land blocks) and 0's (water blocks), count the number of islands present in the grid. The definition of an island is as follows:
1.) Must be surrounded by water blocks.
2.) Consists of land blocks (1's) connected to adjacent land blocks (either vertically or horizontally).
Assume all edges outside of the grid are water.
Example:
Input:
Output: 3
Here's your starting point:
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 主页 | 类别: 计算机科学 | 211 次阅读, 17177 次搜索 | 125 个单词 Given a 2-dimensional grid consisting of 1's (land blocks) and 0's (water blocks), count the number of islands present in the grid. The definition of an island is as follows:
1.) Must be surrounded by water blocks.
2.) Consists of land blocks (1's) connected to adjacent land blocks (either vertically or horizontally).
Assume all edges outside of the grid are water.
Example:
Input:
10001
11000
10110
00000
Output: 3
Here's your starting point:
class Solution(object):
def inRange(self, grid, r, c):
numRow, numCol = len(grid), len(grid[0])
if r < 0 or c < 0 or r >= numRow or c >= numCol:
return False
return True
def numIslands(self, grid):
# Fill this in.
grid = [[1, 1, 0, 0, 0],
[0, 1, 0, 0, 1],
[1, 0, 0, 1, 1],
[0, 0, 0, 0, 0]]
print(Solution().numIslands(grid))
# 3
![定阅此目录的博客 定阅此目录的博客](/images/form/rss.gif)
猜您喜欢...
- Daily Interview Problem: Decode String
- Algorithm Interview Question: Find the Single Element in an Array of Duplicates
- How to Play WAV music under DOS?
- Design Tic-Tac-Toe
- [Daily Problem] Add two numbers as a linked list
- Daily Interview Problem: Merge List Of Number Into Ranges
- Algorithm Interview Question: Max and Min with Limited Comparisons
- Daily Interview Problem:Create a balanced binary search tree
- Daily Interview Problem: Contiguous Subarray with Maximum Sum
- Daily Interview Problem: Running Median
©2006~2024 牛排过熟 - 0.01058 秒 - 4110.316 KB/s - 17 在线
内存: 539.42 KB
18:54:01 up 13 days, 18:33, 2 users, load average: 0.98, 0.86, 0.73 - 服务器 PHP 版本号: 7.4.33
牛排怎么做才好吃? | <meta name="机器人" content="索引, 跟踪">
![](/images/top.jpg)
18:54:01 up 13 days, 18:33, 2 users, load average: 0.98, 0.86, 0.73 - 服务器 PHP 版本号: 7.4.33
读写完全 - 一般 - 最小 - 表格 - 所有评论 - 统计
当前页暂时没有评论。