Date (attemp history: use title to fill)
2026-06-08 [Retry][15] 3Sum (Medium) - solved w/out hint but over complicate due to return index assumption
2026-07-13 [Retry][15] 3Sum (Medium) - too confident to read the problem
Retry Date
2026-07-14
Difficulty
Medium
Pattern
Two Pointers + Sorting
Core Idea
Sort the array first. Fix one number at a time, then use two pointers (left and right) to find the remaining two numbers whose sum equals the negative of the fixed number.
Repo Link
https://github.com/zerexei/software-engineering/blob/main/10_prep/dsa/patterns/TwoPointer/3Tvn.md
Date (attemp history: use title to fill)
2026-06-08 [Retry][15] 3Sum (Medium) - solved w/out hint but over complicate due to return index assumption
2026-07-13 [Retry][15] 3Sum (Medium) - too confident to read the problem
Retry Date
2026-07-14
Difficulty
Medium
Pattern
Two Pointers + Sorting
Core Idea
Sort the array first. Fix one number at a time, then use two pointers (left and right) to find the remaining two numbers whose sum equals the negative of the fixed number.
Repo Link
https://github.com/zerexei/software-engineering/blob/main/10_prep/dsa/patterns/TwoPointer/3Tvn.md