Topic 08 — Linked List
Finished Mon, Aug 31, 2026, 12:12 PM ET: all 3 core problems closed, 3 problems closed that day.
Scheduled: Mon Aug 31, 2026 · Phase: Phase II — Nodal & Grid · Topic: #10 · Builds on: independent primitive
Closed Aug 31 — the day the topic finished
| Issue | Problem | Set | Difficulty | Closed (ET) | Solution |
|---|---|---|---|---|---|
| #77 | LC 206 · Reverse Linked List | core | easy | Aug 31 | py · docs |
| #78 | LC 21 · Merge Two Sorted Lists | core | easy | Aug 31 | py · docs |
| #79 | LC 141 · Linked List Cycle | core | easy | Aug 31 | py · docs |
Open at release
| Issue | Problem | Set | Difficulty | Closed (ET) | Solution |
|---|---|---|---|---|---|
| #80 | LC 19 · Remove Nth Node From End | optional | medium | — | — |
| #81 | LC 143 · Reorder List | optional | medium | — | — |
| #82 | LC 876 · Middle of the Linked List | optional | easy | — | — |
| #83 | LC 92 · Reverse Linked List II | optional | medium | — | — |
| #84 | LC 82 · Remove Duplicates from Sorted List II | optional | medium | — | — |
| #85 | LC 61 · Rotate List | optional | medium | — | — |
| #86 | LC 86 · Partition List | optional | medium | — | — |
20260831.161216.000000000 is timever for the UTC instant the core set completed; it tags 51ce47a, the last main commit before it.