Acedbysomeone's blog

DP
By Acedbysomeone, history, 6 years ago, In English

I don't understand why in some dp problems dp[0] is equal to 0,like the coin change problem.Can someone explain this to me?

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6 years ago, # |
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It depends on what your table actually represents.

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    6 years ago, # ^ |
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    Why is not picking anything is also counted as a way?

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      6 years ago, # ^ |
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      the empty subset almost always counts as satisfying the condition to most problems.

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6 years ago, # |
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afaik, in the coin change problem dp[0] = 1, so what do you mean?

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