Hard2026-08-03
DP with Binary Search Optimization
GoogleSWE II (Early Careers)Technical Round 3
Dynamic ProgrammingBinary SearchOptimization
Daily practice
Questions
Unique DSA problems from real interviews. No solutions — think through them yourself and build genuine problem-solving intuition.
11 questions
Hard2026-08-03
Modified Union-Find with Weighted Graph Components
GoogleSWE II (Early Careers)Technical Round 2
GraphDisjoint Set UnionUnion-Find
Medium2026-08-03
Trie + HashMap Based String Pattern Matching
GoogleSWE II (Early Careers)Technical Round 1
TrieHashMapStrings
Easy2026-08-01
Design a Tooltip Using Only HTML/CSS — No JavaScript
FreshworksSenior SDE (Fullstack)Round 2 (Frontend)
CSSHTMLUI Design
Medium2026-08-01
Implement Array.prototype.myFlat(depth)
FreshworksSenior SDE (Fullstack)Round 2 (Frontend)
JavaScriptRecursionPrototype
Medium2026-08-01
Rate Limiter — Count Dropped Requests
OracleSenior SDEOnsite (Stage 6)
Sliding WindowTwo PointersDesign
Medium2026-08-01
Stock Span Problem — All Three Variants
FreshworksSenior SDE (Fullstack)Round 1 (DSA)
StackMonotonic StackArrays
Medium2026-07-30
Remove Duplicates from Sorted Array — Allow at Most K
OracleSenior SDEOnsite (Stage 3)
ArrayTwo PointersIn-Place
Easy2026-07-30
Run-Length Encoding with Consecutive Count
OracleSenior SDEOnsite (Stage 3)
StringsTwo PointersEncoding
Medium2026-07-28
Bottom View of a Binary Tree
OracleSenior SDEOnsite (Stage 1)
Binary TreeBFSHashMap+1
Hard2026-07-28
Design a Remote Browser Isolation System
OracleSenior SDEOnsite (Stage 2 — System Design)
System DesignSecurityStreaming+1