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Pattern 6 of 15
Master stack-based algorithms including valid parentheses, monotonic stack for next greater element, expression evaluation, and histogram problems.
6
90 min
Master parentheses validation and balancing using stack. Handle multiple bracket types and minimum additions.
Master monotonic stack for next greater element, daily temperatures, and stock span problems.
Learn the stack-based approach to find largest rectangle in histogram and maximal rectangle in matrix.
Design a stack that supports push, pop, top, and retrieving minimum element in constant time.
Use stack for simulation problems like simplify path, decode string, and asteroid collision.
Master expression evaluation using stack. Evaluate reverse polish notation and basic calculator problems.
Access theory, code examples, and practice problems.
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