Darbar 043 — Binary Subarrays With Sum

Medium

Darbar · Array

Catalog slot 43 of 548 (source id 253). Topic array / sliding window.

Solve on LeetCode: Binary Subarrays With Sum. Do not treat this page as a statement dump.

Aligned T2T band: weeks 1–6. Start at Week 1. Full map: Darbar hub.

Pattern block: Timed routing (weeks 1-15, slots 1-120). Warmup: LeetCode-style easy problems (15 min each). Exam: Weekly timed block, 3-5 problems in 60 minutes.

Evidence (cookiecutter problem_043.md)

1. Attempt log (approaches that failed)
2. Final complexity (time and space)
3. One mistake corrected
4. Production concept this slot reinforces

Personal dates and the CSV tracker stay in the learner journal.

Same subtopic

• Minimum Difference Between Highest And Lowest Of K Scores · easy
• Maximum Average Subarray I · easy
• Maximum Points You Can Obtain From Cards · medium
• Minimum Swaps To Group All 1S Together Ii · medium

Array index · Darbar hub

Darbar slot 43 of Tensor-to-Tenant · Previous · Next.