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Concept guides/Arrays and strings/Prefix sums & difference arrays

CodingArrays and strings

Prefix sums & difference arrays

Medium3 min read

Questions it teaches

Find the smallest opening stock for a dayEasy10 min Range sum queriesEasy12 min Equal split pointEasy11 min Count queries below sum limitEasy11 min Range increment updatesEasy13 min Peak concurrent job capacityEasy13 min Tank overflow first dayEasy10 min Sliding window sumsEasy12 min

Related

Arrays and strings Searching and sorting Designing data structures Backtracking and games Dynamic programming Data and ML code Front-end code

Leads to: Searching and sorting

Sorting algorithms3 min Two pointers3 min

Leads to: Designing data structures

Queues, deques & ring buffers3 min Database deduplication3 min

Leads to: Backtracking and games

Recursion & backtracking3 min Game theory & Grundy3 min

Leads to: Dynamic programming

Dynamic programming: 2D & strings3 min Dynamic programming: 1D3 min

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