Problemset - Codeforces

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combinatorics

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Problems

#	Name
251A	Points on Line binary search, combinatorics, two pointers	1300	x16576
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x741
232B	Table bitmasks, combinatorics, dp, math	1900	x1387
229E	Gifts combinatorics, dp, math, probabilities	2600	x450
229C	Triangles combinatorics, graphs, math	1900	x1591
223C	Partial Sums combinatorics, math, number theory	1900	x1512
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x245
215E	Periodical Numbers combinatorics, dp, number theory	2100	x538
213B	Numbers combinatorics, dp	1900	x1664
212C	Cowboys combinatorics, dp, math	2100	x376
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5526
201E	Thoroughly Bureaucratic Organization binary search, combinatorics	2600	x392
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x464
171B	Star *special problem, combinatorics	1300	x3938
156D	Clues combinatorics, graphs	2500	x1470
156C	Cipher combinatorics, dp	2000	x2290
152C	Pocket Book combinatorics	1400	x10253
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x3952
145D	Lucky Pair combinatorics, data structures, implementation	2900	x238
145C	Lucky Subsequence combinatorics, dp, math	2100	x1882
140E	New Year Garland combinatorics, dp	2600	x872
135E	Weak Subsequence combinatorics	3000	x263
131C	The World is a Theatre combinatorics, math	1400	x10640
128C	Games with Rectangle combinatorics, dp	2000	x2692
124B	Permutations brute force, combinatorics, implementation	1400	x3751
123C	Brackets combinatorics, dp, greedy	2300	x588
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1266
113E	Sleeping combinatorics, implementation, math	2700	x116
111D	Petya and Coloring combinatorics, dp	2300	x716
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3286
91C	Ski Base combinatorics, dsu, graphs	2300	x862
57C	Array combinatorics, math	1900	x2323
52B	Right Triangles combinatorics	1600	x1978
51E	Pentagon combinatorics, graphs, matrices	2400	x363
44I	Toys brute force, combinatorics	2300	x181
40E	Number Table combinatorics	2500	x654
37D	Lesson Timetable combinatorics, dp, math	2300	x388
28C	Bath Queue combinatorics, dp, probabilities	2200	x982
26D	Tickets combinatorics, math, probabilities	2400	x745
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x822
15E	Triangles combinatorics, dp	2600	x556
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3666

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