Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
14:00:26
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combinatorics

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Problems

#	Name
340E	Iahub and Permutations combinatorics, math	2000	x2456
340C	Tourist Problem combinatorics, implementation, math	1600	x4214
336E	Vasily the Bear and Painting Square bitmasks, combinatorics, dp, implementation	2700	x114
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x972
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1390
327C	Magic Five combinatorics, math	1700	x3189
325E	The Red Button combinatorics, dfs and similar, dsu, graphs, greedy	2800	x780
323A	Black-and-White Cube combinatorics, constructive algorithms	1600	x731
322B	Ciel and Flowers combinatorics, math	1600	x11725
319A	Malek Dance Club combinatorics, math	1600	x2784
306C	White, Black and White Again combinatorics, number theory	2100	x477
305D	Olya and Graph combinatorics, math	2200	x506
300C	Beautiful Numbers brute force, combinatorics	1800	x9389
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2228
295D	Greg and Caves combinatorics, dp	2400	x647
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1689
294C	Shaass and Lights combinatorics, number theory	1900	x3792
293B	Distinct Paths brute force, combinatorics	2700	x848
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x751
288B	Polo the Penguin and Houses combinatorics	1500	x2904
285E	Positions in Permutations combinatorics, dp, math	2600	x983
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1542
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x768
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1218
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2613
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1784
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1446
251A	Points on Line binary search, combinatorics, two pointers	1300	x17415
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x775
232B	Table bitmasks, combinatorics, dp, math	1900	x1428
229E	Gifts combinatorics, dp, math, probabilities	2600	x459
229C	Triangles combinatorics, graphs, math	1900	x1614
223C	Partial Sums combinatorics, math, number theory	1900	x1549
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x250
215E	Periodical Numbers combinatorics, dp, number theory	2100	x550
213B	Numbers combinatorics, dp	1900	x1744
212C	Cowboys combinatorics, dp, math	2100	x383
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5679
201E	Thoroughly Bureaucratic Organization binary search, combinatorics	2600	x412
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x475
171B	Star *special problem, combinatorics	1300	x4031
156D	Clues combinatorics, graphs	2500	x1559
156C	Cipher combinatorics, dp	2000	x2385
152C	Pocket Book combinatorics	1400	x10549
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x4118
145D	Lucky Pair combinatorics, data structures, implementation	2900	x242
145C	Lucky Subsequence combinatorics, dp, math	2100	x1906
140E	New Year Garland combinatorics, dp	2600	x937
135E	Weak Subsequence combinatorics	3000	x286
131C	The World is a Theatre combinatorics, math	1400	x11050
128C	Games with Rectangle combinatorics, dp	2000	x2915
124B	Permutations brute force, combinatorics, implementation	1400	x3883
123C	Brackets combinatorics, dp, greedy	2300	x603
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1279
113E	Sleeping combinatorics, implementation, math	2700	x119
111D	Petya and Coloring combinatorics, dp	2300	x754
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3443
91C	Ski Base combinatorics, dsu, graphs	2300	x872
57C	Array combinatorics, math	1900	x2562
52B	Right Triangles combinatorics	1600	x2033
51E	Pentagon combinatorics, graphs, matrices	2400	x403
44I	Toys brute force, combinatorics	2300	x188
40E	Number Table combinatorics	2500	x674
37D	Lesson Timetable combinatorics, dp, math	2300	x413
28C	Bath Queue combinatorics, dp, probabilities	2200	x1029
26D	Tickets combinatorics, math, probabilities	2400	x777
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x849
15E	Triangles combinatorics, dp	2600	x577
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3844

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