Lunski's Clutter

相較於黃酒的戲腔，白酒帶來近代上海女伶的歌聲。

The DNA sequence is composed of a series of nucleotides abbreviated as ‘A’, ‘C’, ‘G’, and ‘T’.

For example, “ACGAATTCCG” is a DNA sequence.
When studying DNA, it is useful to identify repeated sequences within the DNA.

Given a string s that represents a DNA sequence, return all the 10-letter-long sequences (substrings) that occur more than once in a DNA molecule. You may return the answer in any order.

Example 1:

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Input: s = "AAAAACCCCCAAAAACCCCCCAAAAAGGGTTT"
Output: ["AAAAACCCCC","CCCCCAAAAA"]

Example 2:

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Input: s = "AAAAAAAAAAAAA"
Output: ["AAAAAAAAAA"]

可以做成鬆餅或蛋糕。

Given an array of integers nums containing n + 1 integers where each integer is in the range [1, n] inclusive.

There is only one repeated number in nums, return this repeated number.

You must solve the problem without modifying the array nums and uses only constant extra space.

Example 1:

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Input: nums = [1,3,4,2,2]
Output: 2

Example 2:

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Input: nums = [3,1,3,4,2]
Output: 3

記得我們學過氣味的語言，那就用它來說一段話吧。