What does 利口耳丝耳 and 利口丝久 mean?

Question

Here's a screenshot from the 1point3acres forums:

it says:

1. 利口耳丝耳
2. 利口丝久

What does this mean? Is it a transliteration from English?

You can also find phrases like:

利口 斯尔
利口 丝丝久

on the site.

Any ideas?

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Edit: they seem to be "interview question types"

Uber ATG failed interview:

一道利口斯尔，一道利口散灵思

startup Element, Inc. failed interview:

利口散灵思->这个不是算每个点到(0,0) square 的 sum 相减么。。还有啥最优解？莫非是Segment tree 或者 binary indexed tree?

Answer 1

I believe 利口 is the Chinese for:

Leet Code

[a] platform to help you enhance your skills, expand your knowledge and prepare for technical interviews.

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and the rest are just numbers:

• 耳丝耳 = 242
• 丝久 = 49
• 斯尔 = 12
• 散灵思 = 304
• 丝丝久 = 449

Although there might be some mistakes in the numbers there.

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If we take 利口散灵思 for example that gives us: LeetCode 304 which is a question about:

Range Sum Query 2D - Immutable（Python）

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Now back to the question at hand:

• Leetcode 22. Generate Parentheses
• LeetCode 19. Remove Nth Node From End of List

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p.s.: the offical name for Leet Code in Chinese seems to be:

力扣

maybe the alternative translation adds to the code.

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Leet Code has a list of articles here ordered by number.