Anomy_1547's blog

Need Help with this problem!
By Anomy_1547, history, 4 years ago, In English

can any one give me hints for these problem Link

I found an editorial in Chinese so I am here for the help!!

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4 years ago, # |
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The last 7 pages of the official editorial include an English translation of the problem editorial.

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4 years ago, # |
← Rev. 2   Vote: I like it -15 Vote: I do not like it

bruh nevermind

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    4 years ago, # ^ |
      Vote: I like it +4 Vote: I do not like it

    You do realise that the value $$$2^{n-1}$$$ will require $$$O(n)$$$ space and that if statement (or even addition) will no longer be a constant operation. It'll take $$$O(n)$$$ time to do these operations (assuming you store them in a proper Big Integer datatype and not what you have written here)

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      4 years ago, # ^ |
        Vote: I like it -11 Vote: I do not like it

      how stupid of me... (1<<n) with n = 2000, sorry)

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