Web Reference: Dec 15, 2025 · A stack is a linear data structure that follows the Last-In-First-Out (LIFO) principle. It can be implemented using an array by treating the end of the array as the top of the stack. This tutorial explains implementing a basic stack data structure in C using an array. It covers the push and pop operations and error handling for stack overflow and underflow. Stacks can be implemented by using arrays or linked lists. Stacks can be used to implement undo mechanisms, to revert to previous states, to create algorithms for depth-first search in graphs, or for backtracking.
YouTube Excerpt: See complete series on data structures here: http://www.youtube.com/playlist?list=PL2_aWCzGMAwI3W_JlcBbtYTwiQSsOTa6P ...
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