Calculating (C(k, k) + C(k+1, k) + C(k+2, k) + ... + C(m, k)) modulo 1234567890 (m >= k) in 1 second? - Codeforces

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Calculating (C(k, k) + C(k+1, k) + C(k+2, k) + ... + C(m, k)) modulo 1234567890 (m >= k) in 1 second?

Revision en2, by xuanquang1999, 2016-08-16 15:52:00

Is there a way to do this if m, k <= 10^9?

PS: C here mean combination number.

History

Revisions

	Rev.	Lang.	By	When	Δ	Comment
	en2		xuanquang1999	2016-08-16 15:52:00	55	Tiny change: 'to do this?' -> 'to do this if m, k <= 10^9?\n\nPS: C here mean combination number.'
	en1		xuanquang1999	2016-08-16 15:48:48	127	Initial revision (published)