SDE II - 60 Day DSA Roadmap

Use 60-day pacing in the Plan Builder

1. 1
   Days 1–5

   Baseline and language#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   concept

   Day 1: Refresh Python interview contractsDay 2: Complexity: name the work you are counting
2. 2
   Days 6–18

   Foundations and core repair#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   conceptarrays-hashingtwo-pointersbinary-searchsliding-windowlinked-list

   Day 6: Recursion: make each call's contract explicitDay 8: Correctness: explain why the algorithm must workDay 9: Representation: decide what every value meansDay 10: Arrays & HashingDay 11: Two PointersDay 12: Binary SearchDay 13: Sliding WindowDay 15: Linked List
3. 3
   Days 19–33

   Structures and patterns#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   treesheap-priority-queuebacktrackingintervalsgreedygraphsone-d-dpadvanced-graphstwo-d-dp

   Day 19: TreesDay 20: Heap / Priority QueueDay 22: BacktrackingDay 23: IntervalsDay 24: GreedyDay 25: GraphsDay 26: 1-D Dynamic ProgrammingDay 27: Advanced GraphsDay 29: 2-D Dynamic Programming
4. 4
   Days 34–43

   Variants and selected extensions#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   practiceconcept

   Day 34: Fixed-window signal peaksDay 36: Earliest peak interval overlapDay 37: Earliest finishes in a dependency planDay 38: Nearest declared grid exitDay 39: Integer arithmetic and coordinate reasoning
5. 5
   Days 44–51

   Mixed and confirmed-format practice#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   review

   Day 44: Clarify a changed contract before coding
6. 6
   Days 52–57

   Mocks and targeted recovery#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   mockreview

   Day 52: SDE II - Bounded Stream MergeDay 53: Turn one failure into a regression test
7. 7
   Days 58–60

   Consolidation and buffer#

   Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Goals

   • Combine compatible core families, introduce only prerequisite-ready extensions, and rehearse the learner's confirmed format without presenting the mock as employer policy.

   Focus

   review

   Day 58: Review and transfer from the mistake logDay 59: Rehearse the final checklist without cramming