One problem from Number theory

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One problem from Number theory

Revision en14, by Mamedov, 2016-08-01 13:19:11

How to calculate $\text{[math]}$ ?

Constraints are 1 ≤ N, M ≤ 2 * 10⁹, 1 ≤ x ≤ 50 and time limit is 1 second.

Please can someone help?

Revisions

Rev.	By	When	Δ	Comment
en14	Mamedov	2016-08-01 13:19:11	0	(published)
en13	Mamedov	2016-08-01 12:29:46	0	Tiny change: ' * 10^{9}$ and $1 \le x ' -> ' * 10^{9}$, $1 \le x '
en12	Mamedov	2016-08-01 12:29:15	5	Tiny change: ' * 10^{9}$ and $1 \le x ' -> ' * 10^{9}$, $1 \le x '
en11	Mamedov	2016-08-01 12:28:46	0	Tiny change: 's 1 second \b\nPlease c' -> 's 1 second.\n\nPlease c'
en10	Mamedov	2016-08-01 12:28:28	6	Tiny change: 's 1 second \b\nPlease c' -> 's 1 second.\n\nPlease c'
en9	Mamedov	2016-08-01 12:27:25	4
en8	Mamedov	2016-08-01 12:24:06	8	Tiny change: ' \bmod M$ this sum?\n\nConst' -> ' \bmod M$ ?\n\nConst'
en7	Mamedov	2016-08-01 12:23:41	82
en6	Mamedov	2016-08-01 12:22:43	49
en5	Mamedov	2016-08-01 12:21:55	175	(saved to drafts)
en4	Mamedov	2016-07-31 12:19:53	0	(published)
en3	Mamedov	2016-07-31 12:17:47	28	Tiny change: '1 ≤ x ≤ 50;' -> '1 ≤ x ≤ 50.\nPlease can someone help?'
en2	Mamedov	2016-07-31 12:09:29	0	Tiny change: 'his sum?\nConstrai' -> 'his sum?\n\nConstrai' (saved to drafts)
en1	Mamedov	2016-07-31 12:07:42	196	Initial revision (published)