题目:https://leetcode.com/contest/leetcode-weekly-contest-53/problems/number-of-distinct-islands/ 题意:给你一个01图,让你找出有多少不同的联通块(相同意为可以通过平移得到) 思路:BFS保存每次走的方向 代码: #include<bits/stdc++.h> using namespace std; #define MP make_pair int dx[] = ...
这道题让我们求不同岛屿的个数,是之前那道Number of Islands的拓展,这道题的难点是如何去判断两个岛屿是否是不同的岛屿,首先1的个数肯定是要相同,但是1的个数相同不能保证一定是相同的岛屿,比如例子2中的那两个岛屿的就不相同,就是说两个相同的岛屿通过平移可以完全重合,但是不能旋转。那么我们如何来判断呢,...
Count the number of distinct islands. An island is considered to be the same as another if and only if one island can be translated (and not rotated or reflected) to equal the other. Example1:11000110000001100011Given the above grid map,return1.Example2:11011100000000111011Given the above grid...
Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four edges of the grid are surrounded by water. Count the number of distinct islands. An island is considered to b...
来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/number-of-distinct-islands 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 2. 解题 记录开始BFS或DFS的起点,后续点跟起点做差,存储路径到set中去重,返回 set 的大小 2.1 BFS 代码语言:javascript 代码运行次数:0 运行 AI...
Leetcode 1274 Number of Ships in a Rectangle Leetcode 1376 Time Needed to Inform All Employees Leetcode 694 Number of Distinct Islands Leetcode 586 Score of Parentheses 基于排列组合的DFS: 其实与图类DFS方法一致,但是排列组合的特征更明显 Leetcode 17 Letter Combinations of a Phone Number Leetcode ...
Leetcode 1274 Number of Ships in a Rectangle Leetcode 1376 Time Needed to Inform All Employees Leetcode 694 Number of Distinct Islands Leetcode 131 Palindrome Partitioning 基于排列组合的DFS: 其实与图类DFS方法一致,但是排列组合的特征更明显 Leetcode 17 Letter Combinations of a Phone Number Leetcode...
我的LeetCode代码仓:https://github.com/617076674/LeetCode 原题链接:https://leetcode-cn.com/problems/number-of-islands/description/ 题目描述: 知识点:连通分量、深度优先遍历 思路:深度优先遍历求连通分量个数 事先设定好私有的成员变量direction来表示岛屿可连接的4个方向,以便于程序...Leet...
题解 提交记录 提交记录 代码 9 1 2 › [[1,1,0,0,0],[1,1,0,0,0],[0,0,0,1,1],[0,0,0,1,1]] [[1,1,0,1,1],[1,0,0,0,0],[0,0,0,0,1],[1,1,0,1,1]] Source 该题目是 Plus 会员专享题 感谢使用力扣!您需要升级为 Plus 会员来解锁该题目 ...
3134.Find-the-Median-of-the-Uniqueness-Array (H-) 2461.Maximum-Sum-of-Distinct-Subarrays-With-Length-K (M) 2537.Count-the-Number-of-Good-Subarrays (M+) 3298.Count-Substrings-That-Can-Be-Rearranged-to-Contain-a-String-II (M+) 3306.Count-of-Substrings-Containing-Every-Vowel-and-K-Con...