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TechJatra DSA Sheet

Pattern-Wise Problem Sheet

385 problems · 17 topics · 68 patterns. Expand a topic, pick a pattern and start checking problems off.

0 / 385 solved

  • Easy 0/81
  • Medium 0/251
  • Hard 0/53
385 problems across the sheet

17 topics · 68 patterns

Fundamental collection of elements stored at contiguous memory locations.

Spot it: Problem involves pairs, sorted arrays, triplets, or opposite-end traversal.

Strategy: Use two indices that move towards or away from each other to reduce redundant comparisons.

Two-Pointer problems
StatusProblemLCGFG
Two Sum II
Medium
3Sum
Medium
Sort Colors
Medium
Move Zeroes
Easy
Container With Most Water
Medium
Trapping Rain Water
Hard