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Lecture 19: Dynamic Programming I: Fibonacci, Shortest Paths

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Fibonacci exposes repeated calls to the same subproblem. After memoization, count distinct subproblems and the work performed within each call.

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Original passages · 2
split it into subproblems, solve those subproblems, and reuse the solutions to your subproblems.
Lecture 19: Dynamic Programming I: Fibonacci, Shortest Paths · ▶ 5:49–5:56
So I count how many different subproblems do I need to do?
Lecture 19: Dynamic Programming I: Fibonacci, Shortest Paths · ▶ 22:42–22:45

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