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Resource suggestion for the Sprint 1 complexity exercise #225

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@AndyNian

Hi CodeYourFuture maintainers,

I worked through Sprint-1/README.md and noticed the Resources section intentionally combines language references (Set, toSorted, Python sorted), a HelloInterview two-pointers overview, and a video before the Big-O explanation.

Would this concrete follow-on exercise be useful for learners after they understand the two-pointer pattern?

https://prachub.com/coding-questions/implement-two-pointer-unique-pair-sum-search

It asks learners to implement a unique-pair sum search and explain the time/space tradeoff, so it connects the two-pointers reference directly to the module's complexity objective. Disclosure: I am the founder of PracHub.

Possible neutral addition beneath the current two-pointers resource:

  • PracHub two-pointer pair-sum exercise - implementation practice with complexity analysis

I can open a minimal PR if this fits the curriculum. If external practice links are intentionally limited, please close this with no action. I am not asking to remove or replace the current HelloInterview link.

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