A buffer overflow happens when a program writes more data into a memory buffer than the buffer can hold. The extra bytes land in adjacent memory, corrupting whatever was there. If an attacker controls ...
🔥 This is a perfect “pre-flight checklist” before diving into advanced algorithms. HashMaps, recursion, DFS/BFS, binary search, sliding window, heaps — master these, and a lot of interview problems ...
Two different recursive traversals in one component. Then comes the data structure question. Do you store the tree as nested objects? Do you flatten it with parent references? Your choice here decides ...
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