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Code Challenge: Python Nested Loops Optimization

Coding Challenges

For this code challenge, you’re to implement a function which finds four numbers within the provided list which have a sum equal to the target.

An example is provided, but is too slow on larger test cases because it has too many nested loops.

  • There will always be at least one valid quadruplet.
  • The same number can be used any number of times.
  • Numbers can be returned in any order.

More resources

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