Week 12 — Aug 10–15, 2026 — Bit Manipulation + Sprint Close
Week 12 (Aug 10 – Aug 15, 2026) — BIT MANIPULATION + SPRINT CLOSE (Sprint S8 of 8)
Final sprint week (6 days). Last DSA bucket + finish SD theory + last SD problem. Aug 15 = flip to APPLY mode. Timer on, solo.
→ Curriculum: [[Coach/project_dsa_sd_curriculum]] | Coach state: [[synthesis/Coach Hub]]
Goals This Week
- 7 DSA problems (Bit) + weak-pattern patch on time
- SD problem: Distributed KV Store / Web Crawler
- SD theory finish: Consumer Facing, Common Utilities, Critical Systems
- DDIA: Ch10 Consistency & Consensus
- Aug 15 SPRINT-COMPLETE RETRO → flip to apply mode
DSA Problem Set (7 + patch)
| # | Problem | LC | Diff | Target | Solved? | Time | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Single Number | 136 | E | 10 min | ☐ | XOR | |
| 2 | Number of 1 Bits | 191 | E | 10 min | ☐ | n & (n-1) | |
| 3 | Counting Bits | 338 | E | 15 min | ☐ | dp[i]=dp[i>>1]+(i&1) | |
| 4 | Reverse Bits | 190 | E | 15 min | ☐ | bit-by-bit | |
| 5 | Missing Number | 268 | E | 10 min | ☐ | XOR / sum | |
| 6 | Sum of Two Integers | 371 | M | 25 min | ☐ | carry via XOR+AND<<1 | |
| 7 | Reverse Integer | 7 | M | 20 min | ☐ | overflow guard | |
| 8+ | Weak-pattern patch | — | — | — | ☐ | re-solve worst misses from S1–S7 |
Score: __/7 + patch
SD + Theory + DDIA
| Item | Status | Notes |
|---|---|---|
| SD: Distributed KV Store / Web Crawler | ⬜ | consistent hashing, replication, quorum reads/writes |
| SD theory: Consumer Facing | ⬜ | finish |
| SD theory: Common Utilities | ⬜ | finish |
| SD theory: Critical Systems | ⬜ | finish |
| DDIA: Ch10 Consistency & Consensus | ⬜ | linearizability, quorum, Raft/Paxos basics |
Daily Plan (compact)
- Mon: LC 136, 191, 338
- Tue: LC 190, 268, 371, 7
- Wed: weak-pattern patch (worst 3 misses S1–S7) + SD theory: Consumer Facing
- Thu: KV Store high-level + SD theory: Common Utilities
- Fri: KV Store deep + DDIA Ch10 + SD theory: Critical Systems
- Sat (Aug 15): KV whiteboard cold + SPRINT RETRO
SPRINT-COMPLETE RETRO (Aug 15)
- NeetCode 150 complete? __/150
- HLD/SD problems done: __/8 (URL Shortener, Rate Limiter, Twitter Feed, WhatsApp, Uber, Autocomplete, Notifications, KV/Crawler)
- Redis playlist complete? Y/N
- DDIA Ch6–10 done? __
- SD theory complete? Y/N
- Weakest area going into apply phase: ___
- Top 5 problems to re-drill during apply phase: ___
→ FLIP TO APPLY MODE (Aug 15 onward)
- Resume + LinkedIn final polish
- 10 referral DMs (Splunk 5 + Amazon 5)
- First 5 applications
- Schedule first paid mock → Apply-phase plan: [[synthesis/Job Switch Hub]] + [[Coach/project_dsa_sd_curriculum]]
Hours Log
| Day | Planned | Actual |
|---|---|---|
| Mon–Sat | ~22h |