Pointer Patterns, step by step
🧭 Which pattern?
Run Grouping
Two Pointers · Ends
Two Pointers · Read/Write
Sliding Window
Stack
Hash Map
Prefix Sum
Binary Search
Heap
BFS / DFS
Dynamic Programming
🧭 Step 1: Answer the questions
⏱ Step 2: The 60-second routine (tap through it on each problem)
🃏 Step 3: Pattern cards (scan the clue tags)
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