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wadhwasahil's blog

Need help to solve this problem
By wadhwasahil, history, 9 years ago, In English

I am quite weak in DP and Bitmasking concept. I need help to solve this problem https://www.codechef.com/problems/TSHIRTS

Thanks.

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9 years ago, # |
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Auto comment: topic has been updated by wadhwasahil (previous revision, new revision, compare).

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9 years ago, # |
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Look at the editorial it is quiet good. You may want to look at problem : http://www.spoj.com/problems/ASSIGN/

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    9 years ago, # ^ |
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    I looked at the editorial . I couldn't understand it completely. Can you provide some help?

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9 years ago, # |
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I couldn't submit my solution in Codechef because when I click on "Submit", it sends me back to the problem statement like nothing happened.

Well... anyway, what I did was, first make a list of all people that can wear each shirt, then iterate on shirts and try to assign them to unassigned people. So let's have DP[i][m] which means ways to reach a state where I processed the first i shirts and the people in mask m have been assigned a shirt already. The answer will be DP[100][2N - 1].

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