✅ Amazon SDE II – DSA Weekend Plan

🕗 Start Time: Friday 8 PM
📅 End Time: Monday 11:59 PM
🎯 Goal: Finish coding practice & revision of all high-yield Amazon topics

📅 FRIDAY (Today)

🕗 8 PM – 12 AM (4 Hours)
Focus: Arrays, Strings, HashMap

Time	Topic	Problems (LeetCode IDs)
8:00–9:30	Arrays	53. Max Subarray, 121. Best Time to Buy & Sell, 26. Remove Duplicates
9:30–11:00	Strings	3. Longest Substring w/o Repeat, 567. Permutation in String
11:00–12:00	HashMap	1. Two Sum, 347. Top K Frequent, 49. Group Anagrams

🕖 7 AM – 12 AM (with breaks, ~14 hours)

Time Slot	Focus	Key Problems
7:00–9:00 AM	Sliding Window + Two Ptrs	76. Min Window, 239. Sliding Max, 11. Container with Water
9:00–11:00 AM	Sorting + Greedy	56. Merge Intervals, 452. Min Arrows, 134. Gas Station
11:00–12:00 PM	Break / Review Notes	—
12:00–2:00 PM	Binary Search (All types)	33. Rotated Array, 74. Search 2D, 875. Koko Bananas
2:00–4:00 PM	Stack & Queue	20. Valid Parens, 739. Daily Temps, 155. Min Stack
4:00–5:00 PM	Break / Eat	—
5:00–7:00 PM	Linked List	206. Reverse LL, 141. Detect Cycle, 19. Remove N-th Node
7:00–9:00 PM	Recursion + Backtracking	46. Permutations, 78. Subsets, 51. N-Queens
9:00–10:00 PM	Tries (bonus)	208. Trie, 648. Replace Words (optional)
10:00–12:00 AM	Mock 1: Mixed Easy-Medium	Pick 5 Amazon Tag Questions

🕖 7 AM – 12 AM (~14 hours)

Time Slot	Focus	Key Problems
7:00–9:00 AM	Trees (Binary & BST)	94. Inorder, 105. Build Tree, 230. Kth Smallest, 235. LCA
9:00–11:00 AM	Graphs (BFS/DFS/U-Find)	200. No. of Islands, 207. Course Schedule, 133. Clone Graph
11:00–12:00 PM	Break / Notes	—
12:00–2:00 PM	Dynamic Programming	70. Climb Stairs, 198. Robber, 322. Coin Change, 1143. LCS
2:00–4:00 PM	Heap / Priority Queue	215. Kth Largest, 23. Merge K LL, 347. Top K Frequent
4:00–5:00 PM	Break / Revise Notes	—
5:00–7:00 PM	Bit Manipulation	136. Single Number, 191. Count Bits, 268. Missing Number
7:00–9:00 PM	Mock 2: 4 Mixed Qs	Medium + Hard Tag Amazon
9:00–12:00 AM	Mock 3 + Revision	High-yield reattempt + flashcards

🕗 8 AM – 11 PM (as per your work schedule)

Time	Focus	Task
8–10 AM	Recap Weak Areas	Revisit failed/missed problems
10–1 PM	Design + LLD (1 hr theory)	LRU, Logger, Twitter, TinyURL (just high-level logic)
1–2 PM	Break	—
2–5 PM	Final Mock 4 (Timing enforced)	Simulate 70–90 mins coding round
5–7 PM	Behavioral Prep (STAR Method)	STAR for Projects, Conflict, Leadership, Failures
7–10 PM	Final Revise Notes + Confidence	Pattern review, edge cases, “do-not-forget” list