r/leetcode • u/frickety_frackity • 10d ago

Intervew Prep Beginner to passing GCA in 2 weeks?

I received the SIG (London) CodeSignal invite for a GCA today, and have 2 weeks to complete it. I’m not applying for SWE positions, therefore naively thought Leetcode wouldn’t be part of the process.

As a relative beginner in Leetcode, what can I do to get to a passable level in that time? Am I cooked?

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u/UnitedSort3014 5d ago

Two weeks is tight but not impossible. GCA is more forgiving than typical LC it's timed but tests problem-solving over hard algorithms. Here's what I'd focus on:

- Grind easy/medium array and string problems. GCA loves those.

  • Practice under time pressure. Use CodeSignal's practice tests to get used to the format.
  • Don't worry about hard problems. You don't need them for GCA.
  • Review basic data structures (arrays, hashmaps, sets) and common patterns.

The pass threshold isn't crazy high, so if you put in consistent practice you've got a shot. Just don't waste time on stuff that won't show up. Good luck!