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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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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It depends on what your table actually represents.
Why is not picking anything is also counted as a way?
the empty subset almost always counts as satisfying the condition to most problems.
afaik, in the coin change problem dp[0] = 1, so what do you mean?