Problemset - Codeforces

→ Pay attention

Before contest
Codeforces LATOKEN Round 1 (Div. 1 + Div. 2)
08:07:46
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

math

Add tag

Problems

#	Name
1488J	Flower Shop *special problem, data structures, fft, math	3100	x9
1425C	Captain of Knights math	3100	x18
1184D2	Parallel Universes (Hard) math, matrices	3100	x22
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x33
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x37
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x37
1310F	Bad Cryptography math, number theory	3400	x38
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x39
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x39
100J	Interval Coloring *special problem, greedy, math	2400	x41
1211G	King's Path *special problem, math, trees	2500	x48
737F	Dirty plates constructive algorithms, math	3300	x49
457E	Flow Optimality constructive algorithms, flows, math	3000	x50
1297G	M-numbers *special problem, dp, math		x52
28E	DravDe saves the world geometry, math	2800	x53
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x54
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x54
901E	Cyclic Cipher fft, math	3300	x54
756F	Long number expression parsing, math, number theory	3400	x60
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x61
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x62
79E	Security System math	2900	x63
1381E	Origami geometry, math, sortings	3300	x64
1158E	Strange device binary search, interactive, math, trees	3400	x64
1477F	Nezzar and Chocolate Bars combinatorics, fft, math, probabilities	3500	x65
868G	El Toll Caves math	3300	x66
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x67
109E	Lucky Interval brute force, math	2700	x67
1205F	Beauty of a Permutation constructive algorithms, math	3400	x70
128E	Birthday geometry, math	2900	x72
1045F	Shady Lady geometry, math	3400	x73
1361F	Johnny and New Toy data structures, implementation, math	3300	x76
1392I	Kevin and Grid fft, graphs, math	3300	x78
446E	DZY Loves Bridges math, matrices	3100	x79
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x81
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x81
1299E	So Mean interactive, math	3400	x82
1086F	Forest Fires math	3500	x82
1209H	Moving Walkways data structures, greedy, math	3300	x83
72F	Oil *special problem, greedy, math	1900	x83
113E	Sleeping combinatorics, implementation, math	2700	x85
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x86
913H	Don't Exceed math, probabilities	3400	x86
1528F	AmShZ Farm combinatorics, fft, math	3300	x89
1474F	1 2 3 4 ... dp, math, matrices	3000	x89
40D	Interesting Sequence math	2600	x89
802F	Marmots (hard) math, probabilities	2800	x90
756E	Byteland coins combinatorics, dp, math	3200	x92
859G	Circle of Numbers math	3000	x97
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x98
1408I	Bitwise Magic dp, math	3200	x101
396E	On Iteration of One Well-Known Function math		x102
549E	Sasha Circle geometry, math	2700	x104
1270I	Xor on Figures constructive algorithms, fft, math	3500	x106
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x107
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x108
1346G	Two IP Cameras *special problem, math, number theory	2300	x110
280E	Sequence Transformation data structures, dp, implementation, math	3000	x112
1242D	Number Discovery math	3400	x114
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x115
1054G	New Road Network constructive algorithms, greedy, math	3300	x115
267C	Berland Traffic math, matrices	2700	x115
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x117
1280E	Kirchhoff's Current Loss math	2900	x119
618G	Combining Slimes dp, math, matrices, probabilities	3300	x121
1168E	Xor Permutations constructive algorithms, math	3100	x122
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x125
329E	Evil math	3100	x127
1193A	Amusement Park *special problem, dp, math		x129
1223G	Wooden Raft binary search, math, number theory	3200	x132
100E	Lamps in a Line *special problem, math	1600	x132
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x134
335E	Counting Skyscrapers dp, math, probabilities	2800	x134
913G	Power Substring math, number theory	3200	x136
1103E	Radix sum fft, math, number theory	3400	x137
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x140
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x140
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x140
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x141
1012E	Cycle sort dsu, math	3100	x144
1067D	Computer Game dp, greedy, math, probabilities	3100	x145
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x146
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x148
401E	Olympic Games math	2500	x149
86E	Long sequence brute force, math, matrices	2700	x149
57E	Chess math, shortest paths	3000	x151
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x152
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x154
571E	Geometric Progressions math	3200	x163
1158F	Density of subarrays dp, math	3500	x165
1016G	Appropriate Team bitmasks, math, number theory	2700	x165
1211D	Teams *special problem, binary search, greedy, math	2000	x166
346E	Doodle Jump math, number theory	3000	x166
303E	Random Ranking dp, math, probabilities	3000	x167
1081G	Mergesort Strikes Back math, probabilities	3200	x169
981H	K Paths combinatorics, data structures, dp, fft, math	3100	x169
1261F	Xor-Set bitmasks, divide and conquer, math	3100	x170
774E	Big Number and Remainder *special problem, math, number theory	2300	x175
76C	Mutation bitmasks, dp, math	2700	x177
794G	Replace All combinatorics, dp, math	3400	x178

←