题目描述：
LeetCode 823. Binary Trees With Factors
Given an array of unique integers, each integer is strictly greater than 1.
We make a binary tree using these integers and each number may be used for any number of times.
Each non-leaf ...
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[LeetCode]Binary Trees With Factors
[LeetCode]Short Encoding of Words
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题目描述：
LeetCode 820. Short Encoding of Words
Given a list of words, we may encode it by writing a reference string S and a list of indexes A.
For example, if the list of words is ["time", "me", "bell"], we ...
[LeetCode]Card Flipping Game
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题目描述：
LeetCode 822. Card Flipping Game
On a table are N cards, with a positive integer printed on the front and back of each card (possibly different).
We flip any number of cards, and after we choose one card.
If ...
[LeetCode]Shortest Distance to a Character
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LeetCode.
题目描述：
LeetCode 821. Shortest Distance to a Character
Given a string S and a character C, return an array of integers representing the shortest distance from the character C in the string.
Example 1:
Input: S = "loveleetcode", C = 'e' Output ...
[LeetCode]Ambiguous Coordinates
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题目描述：
LeetCode 816. Ambiguous Coordinates
We had some 2-dimensional coordinates, like "(1, 3)" or "(2, 0.5)". Then, we removed all commas, decimal points, and spaces, and ended up with the string S. Return a ...