What are some common algorithms that use stacks?
Some common algorithms that use stacks include Depth-First Search (DFS), expression evaluation, and backtracking algorithms.
Can you explain how Depth-First Search uses a stack?
Sure! In DFS, a stack is used to keep track of the nodes to be explored. It allows the algorithm to explore as far as possible along each branch before backtracking.
What about expression evaluation? How does that work with stacks?
In expression evaluation, stacks are used to convert infix expressions to postfix (or prefix) and to evaluate them. Operands are pushed onto the stack, and operators pop operands for computation.
Are there any other algorithms that heavily rely on stacks?
Yes, backtracking algorithms, such as solving mazes or puzzles, also use stacks to remember the path taken and backtrack when necessary.
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