Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round #793 (Div. 2)
04:21:04
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

math

Add tag

Problems

#	Name
1578G	Game of Chance math, probabilities	3500	x20
1488J	Flower Shop *special problem, data structures, fft, math	3100	x20
1666H	Heroes of Might math	3500	x23
1425C	Captain of Knights math	3100	x27
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x34
1184D2	Parallel Universes (Hard) math, matrices	3100	x37
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x38
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x41
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x42
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x42
100J	Interval Coloring *special problem, greedy, math	2400	x44
1662E	Round Table math		x46
1310F	Bad Cryptography math, number theory	3400	x47
1684H	Hard Cut constructive algorithms, divide and conquer, math	3400	x51
1540E	Tasty Dishes math, matrices	3500	x51
1211G	King's Path *special problem, math, trees	2500	x52
1677F	Tokitsukaze and Gems dp, math	3500	x53
737F	Dirty plates constructive algorithms, math	3300	x55
1297G	M-numbers *special problem, dp, math		x56
28E	DravDe saves the world geometry, math	2800	x58
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x59
901E	Cyclic Cipher fft, math	3300	x60
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x61
457E	Flow Optimality constructive algorithms, flows, math	3000	x63
1580F	Problems for Codeforces combinatorics, fft, math	3300	x66
1575F	Finding Expected Value math	2900	x66
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x67
756F	Long number expression parsing, math, number theory	3400	x70
109E	Lucky Interval brute force, math	2700	x73
1381E	Origami geometry, math, sortings	3300	x74
868G	El Toll Caves math	3300	x74
1586I	Omkar and Mosaic combinatorics, constructive algorithms, math	3500	x75
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x75
128E	Birthday geometry, math	2900	x75
1158E	Strange device binary search, interactive, math, trees	3400	x77
1045F	Shady Lady geometry, math	3400	x80
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x83
1666G	Global Warming geometry, math	3100	x85
1477F	Nezzar and Chocolate Bars combinatorics, fft, math, probabilities	3500	x85
1205F	Beauty of a Permutation constructive algorithms, math	3400	x87
269E	String Theory geometry, math, strings	3100	x88
113E	Sleeping combinatorics, implementation, math	2700	x89
79E	Security System math	2900	x89
72F	Oil *special problem, greedy, math	1900	x90
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x91
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x92
446E	DZY Loves Bridges math, matrices	3100	x94
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x96
802F	Marmots (hard) math, probabilities	2800	x96
40D	Interesting Sequence math	2600	x96
1299E	So Mean interactive, math	3400	x97
1209H	Moving Walkways data structures, greedy, math	3300	x98
1552I	Organizing a Music Festival dfs and similar, math	3400	x99
1361F	Johnny and New Toy data structures, implementation, math	3300	x99
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x104
859G	Circle of Numbers math	3000	x105
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x106
913H	Don't Exceed math, probabilities	3400	x106
396E	On Iteration of One Well-Known Function math		x107
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x109
756E	Byteland coins combinatorics, dp, math	3200	x110
1601F	Two Sorts binary search, dfs and similar, math, meet-in-the-middle	3400	x112
1392I	Kevin and Grid fft, graphs, math	3300	x112
549E	Sasha Circle geometry, math	2700	x117
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x118
1346G	Two IP Cameras *special problem, math, number theory	2300	x119
267C	Berland Traffic math, matrices	2700	x119
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x121
1408I	Bitwise Magic dp, math	3200	x123
1474F	1 2 3 4 ... dp, math, matrices	3000	x127
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x128
1242D	Number Discovery math	3400	x130
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x132
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x134
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x137
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x138
1086F	Forest Fires math	3500	x139
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x141
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x142
329E	Evil math	3100	x142
100E	Lamps in a Line *special problem, math	1600	x142
1054G	New Road Network constructive algorithms, greedy, math	3300	x144
1637H	Minimize Inversions Number data structures, greedy, math, sortings	3500	x145
1193A	Amusement Park *special problem, dp, math		x145
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x148
1662C	European Trip dp, graphs, math, matrices		x149
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x152
401E	Olympic Games math	2500	x152
1656G	Cycle Palindrome constructive algorithms, graphs, math	3200	x153
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x153
1280E	Kirchhoff's Current Loss math	2900	x154
1270I	Xor on Figures constructive algorithms, fft, math	3500	x154
86E	Long sequence brute force, math, matrices	2700	x154
1603E	A Perfect Problem combinatorics, dp, math	3200	x155
1528F	AmShZ Farm combinatorics, fft, math	3300	x155
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x155
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x157
618G	Combining Slimes dp, math, matrices, probabilities	3300	x157
913G	Power Substring math, number theory	3200	x158
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x159

←