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eighty's blog

By eighty, history, 8 years ago, In English

Hello Codeforces,

I am wondering how to solve this problem here.

Any idea? Thankyou.

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By eighty, history, 9 years ago, In English

Hi Everyone.

Now I'm wondering about how to count (a*b) % c? 1 <= a,b,c <=10^18.

Any advice?

Thank you.

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By eighty, history, 9 years ago, In English

Hi Everyone.

Now I'm wondering about how many different ways of choosing K( K <= 1000 ; K <= N) numbers from 0 until N-1 such that the sum is divisible by N ( N <= 10^9).

Any advice?

Thank you.

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