LeetCode Weekly Contest 53是LeetCode举办的第五十七场正式周赛，共4道题目，比赛时长1.5小时。
比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-53/
题解列表：
LeetCode 693. Binary Number with Alternating Bits
LeetCode 695. Max Area of Island
LeetCode 694. Number of Distinct Islands
LeetCode 691. Stickers to Spell Word
LeetCode 691. Stickers to Spell Word
We are given N different types of stickers. Each sticker has a lowercase English word on it.
You would like to spell out the given target string by cutting individual letters from your ...
LeetCode 694. Number of Distinct Islands
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 ...
LeetCode 695. Max Area of Island
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 ...
LeetCode 693. Binary Number with Alternating Bits
Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values.
Example 1:
Input: 5 Output: True Explanation: The binary representation of 5 ...