Problemset - Codeforces

Problems

#	Name
288B	Polo the Penguin and Houses combinatorics	1500	x3266
285E	Positions in Permutations combinatorics, dp, math	2600	x1442
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1710
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x963
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1359
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2889
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x2037
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1646
251A	Points on Line binary search, combinatorics, two pointers	1300	x22345
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x1004
232B	Table bitmasks, combinatorics, dp, math	1900	x1708
229E	Gifts combinatorics, dp, math, probabilities	2600	x628
229C	Triangles combinatorics, graphs, math	1900	x1871
223C	Partial Sums combinatorics, math, number theory	1900	x1783
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x283
215E	Periodical Numbers combinatorics, dp, number theory	2100	x705
213B	Numbers combinatorics, dp	1900	x2009
212C	Cowboys combinatorics, dp, math	2100	x523
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x6853
201E	Thoroughly Bureaucratic Organization binary search, combinatorics	2600	x551
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x548
171B	Star *special problem, combinatorics	1300	x4959
156D	Clues combinatorics, graphs	2500	x2183
156C	Cipher combinatorics, dp	2000	x2727
152C	Pocket Book combinatorics	1400	x11834
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x5650
145D	Lucky Pair combinatorics, data structures, implementation	2900	x321
145C	Lucky Subsequence combinatorics, dp, math	2100	x2243
140E	New Year Garland combinatorics, dp	2600	x1111
135E	Weak Subsequence combinatorics	3000	x507
131C	The World is a Theatre combinatorics, math	1400	x12968
128C	Games with Rectangle combinatorics, dp	2000	x3395
124B	Permutations brute force, combinatorics, implementation	1400	x5119
123C	Brackets combinatorics, dp, greedy	2300	x773
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1486
113E	Sleeping combinatorics, implementation, math	2700	x190
111D	Petya and Coloring combinatorics, dp	2300	x949
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x4525
91C	Ski Base combinatorics, dsu, graphs	2300	x1054
57C	Array combinatorics, math	1900	x4504
52B	Right Triangles combinatorics	1600	x2513
51E	Pentagon combinatorics, graphs, matrices	2400	x507
44I	Toys brute force, combinatorics	2300	x257
40E	Number Table combinatorics	2500	x1082
37D	Lesson Timetable combinatorics, dp, math	2300	x603
28C	Bath Queue combinatorics, dp, probabilities	2200	x1369
26D	Tickets combinatorics, math, probabilities	2400	x1024
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x1082
15E	Triangles combinatorics, dp	2600	x710
9D	How many trees? combinatorics, divide and conquer, dp	1900	x4750