Robodynamics Academy

Stacks & Queues

LIFO Sutra

1 / 6⚡ 160 XP

Step 1 — LIFO & FIFO Patterns

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Stacks (LIFO) & Queues (FIFO)

stack: list.append/pop | queue: deque.append/popleft

Goal: Apply LIFO/FIFO patterns, monotonic stacks, and balanced parentheses checking.