AP CSA
Heapsort Visualization
DESCRIPTION
Visualize treating a flat array as a Complete Binary Tree. Watch the algorithm Build Max Heap, then extract elements to sort in O(N log N) time without extra memory.
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AP CSA
Binary Search Tree
Construct dynamic 2D Binary Search Trees element by element. Run animated depth-first traversals (In-order, Pre-order, Post-order) stepping through the recursive call stack.
AP CSA
Array vs ArrayList Memory Resizing
Witness the internal array backing an ArrayList dynamically resize. Compare fixed memory bounds against O(N) copy operations when capacity is exceeded.
AP CSA
2D Array Traversal
Deconstruct nested loops covering Row-Major, Column-Major, and boundary tracing across a 2D integer matrix.
AP CSA