_greg's blog

MEX queries
By _greg, history, 7 years ago, In English

I have heard about the problem with this statement:

You are given an integer array. You need to perform two types of queries:

1. " pos val " — assign val to position pos.

2. " l r " — find MEX on the segment from l to r.

Does anyone know where can this problem be found?

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7 years ago, # |
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Sorry, misunderstood.

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7 years ago, # |
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don't know about that problem but here is one that is kinda similar...maybe harder.. http://codeforces.net/contest/817/problem/F hope it helps

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7 years ago, # |
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Can be done using : http://codeforces.net/blog/entry/44711?#comment-292040

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7 years ago, # |
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http://codeforces.net/problemset/problem/842/D?locale=en

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