Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:31:47
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Difficulty: —

number theory

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Problems

#	Name
185D	Visit of the Great math, number theory	2600	x422
180B	Divisibility Rules math, number theory	2300	x338
177B2	Rectangular Game number theory	1200	x2919
177B1	Rectangular Game number theory	1000	x4118
172D	Calendar Reform *special problem, number theory	1500	x1392
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2761
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1269
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6234
154B	Colliders math, number theory	1600	x4559
150A	Win or Freeze games, math, number theory	1400	x7747
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x2012
123A	Prime Permutation implementation, number theory, strings	1300	x3599
122A	Lucky Division brute force, number theory	1000	x122458
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1279
117B	Very Interesting Game brute force, number theory	1800	x1601
113C	Double Happiness brute force, math, number theory	2200	x1232
111B	Petya and Divisors binary search, data structures, number theory	1900	x3652
93E	Lostborn dp, math, number theory	2600	x498
84A	Toy Army math, number theory	900	x14923
83D	Numbers dp, math, number theory	2400	x852
78C	Beaver Game dp, games, number theory	2000	x1866
75C	Modified GCD binary search, number theory	1600	x12573
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1276
73E	Morrowindows math, number theory	2400	x357
71C	Round Table Knights dp, math, number theory	1600	x6462
68A	Irrational problem implementation, number theory	1100	x4922
66D	Petya and His Friends constructive algorithms, math, number theory	1700	x3151
64E	Prime Segment *special problem, brute force, math, number theory	1800	x240
59B	Fortune Telling implementation, number theory	1200	x6846
55D	Beautiful numbers dp, number theory	2500	x3870
45G	Prime Problem number theory	2200	x1034
27E	Number With The Given Amount Of Divisors brute force, dp, number theory	2000	x4181
26A	Almost Prime number theory	900	x30747
17D	Notepad number theory	2400	x1073
17A	Noldbach problem brute force, math, number theory	1000	x16215
16C	Monitor binary search, number theory	1800	x4719
10C	Digital Root number theory	2000	x1436
7C	Line math, number theory	1800	x4589

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