Exfoliating is the process of removing dead skin cells from the surface of your skin using a chemical, granular substance, or exfoliation tool. Your skin naturally sheds dead skin cells to make ...

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Structure Key Methods Common Leetcode Use Cases Array arr[i], arr.length DP, prefix sum, binary search ArrayList add, get, size General purpose, 2D grid Deque push, pop, peek,offer, poll, peek DFS, ...