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Tanzim_bn's blog

By Tanzim_bn, history, 2 hours ago, In English

As 2024 nears its end, let’s share the problems we enjoyed the most this year so far! Drop the problem name, link and what made it special (optional).

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115 minutes ago, # |
  Vote: I like it +6 Vote: I do not like it

2044F - Easy Demon Problem Quite an interesting problem, looked really hard but had an easy mathematical solution (Do give it a try if you haven't).

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    6 minutes ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Would you mind giving some hints about it?

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90 minutes ago, # |
  Vote: I like it +4 Vote: I do not like it

1933E. Xor-Grid Problem It demonstrates the magical nature of XOR operations, completing the missing rows and columns in an array.

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68 minutes ago, # |
  Vote: I like it +1 Vote: I do not like it

1919D — 01 Tree Everything fits so nicely together!

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12 minutes ago, # |
  Vote: I like it +1 Vote: I do not like it

2029C - New Rating Although dp is easier to think here, the bin search solution is really satisfying.