题目描述：
LeetCode 829. Consecutive Numbers Sum
Given a positive integer N, how many ways can we write it as a sum of consecutive positive integers?
Example 1:
Input: 5 Output: 2 Explanation: 5 = 5 = 2 + 3
Example 2:
Input: 9 Output ...
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[LeetCode]Consecutive Numbers Sum
[LeetCode]Masking Personal Information
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LeetCode.
题目描述：
LeetCode 831. Masking Personal Information
We are given a personal information string S, which may represent either an email address or a phone number.
We would like to mask this personal information according to the following rules:
1. Email address:
We define a ...
[LeetCode]Positions of Large Groups
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LeetCode.
题目描述：
LeetCode 830. Positions of Large Groups
In a string S of lowercase letters, these letters form consecutive groups of the same character.
For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy".
Call ...
[LeetCode]Making A Large Island
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LeetCode.
题目描述：
LeetCode 827. Making A Large Island
In a 2D grid of 0s and 1s, we change at most one 0 to a 1.
After, what is the size of the largest island? (An island is a ...
[LeetCode]Most Profit Assigning Work
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LeetCode.
题目描述：
LeetCode 826. Most Profit Assigning Work
We have jobs: difficulty[i] is the difficulty of the ith job, and profit[i] is the profit of the ith job.
Now we have some workers. worker[i ...