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This will talk about various programming concepts and algorithms and link them to the questions.

Concepts / Algorithms

• Matrix
• Geometry
• Segment Tree
• Dynamic Programming
• Combinatorics
• Sum over Subsets

Questions

• 2463. Minimum Total Distance Travelled
• 3235. Check if the Rectangle Corner Is Reachable
• 3244. Shortest Distance After Road Addition Queries II
• 3337. Total Characters in String After Transformations II
• 3343. Count Number of Balanced Permutations
• 3757 - Number of Effective Subsequences