Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 973 (Div. 2)
15:16:23
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

math

Add tag

Problems

#	Name
1100C	NN and the Optical Illusion binary search, geometry, math	1200	x10078
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x11100
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x222
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1673
1097D	Makoto and a Blackboard dp, math, number theory, probabilities	2200	x2852
1096F	Inversion Expectation dp, math, probabilities	2300	x1776
1096E	The Top Scorer combinatorics, dp, math, probabilities	2500	x1000
1096B	Substring Removal combinatorics, math, strings	1300	x10558
1096A	Find Divisible greedy, implementation, math	800	x18698
1093A	Dice Rolling math	800	x17676
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x4715
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x203
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x1001
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6738
1091C	New Year and the Sphere Transmission math, number theory	1400	x9984
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x17470
1090L	Berland University greedy, math	2000	x1259
1090K	Right Expansion Of The Mind math	2000	x1062
1089G	Guest Student math	1500	x2887
1089F	Fractions math	1900	x1924
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1477
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x8045
1086F	Forest Fires math	3500	x239
1085C	Connect Three implementation, math	1600	x5427
1085B	Div Times Mod math	1100	x9279
1082A	Vasya and Book implementation, math	1200	x8533
1081G	Mergesort Strikes Back math, probabilities	3200	x346
1081E	Missing Numbers binary search, constructive algorithms, greedy, math, number theory	1900	x2582
1081C	Colorful Bricks combinatorics, dp, math	1500	x7246
1081A	Definite Game constructive algorithms, math	800	x12015
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1541
1080B	Margarite and the best present math	900	x11752
1080A	Petya and Origami math	800	x18057
1077A	Frog Jumping math	800	x29855
1076C	Meme Problem binary search, math	1300	x12406
1076B	Divisor Subtraction implementation, math, number theory	1200	x12900
1075A	The King's Race implementation, math	800	x8481
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2582
1073B	Vasya and Books implementation, math	1000	x10545
1068B	LCM math, number theory	1200	x11479
1068A	Birthday math	1400	x6788
1067E	Random Forest Rank dp, graph matchings, math, trees	2800	x439
1067D	Computer Game dp, greedy, math, probabilities	3100	x386
1066E	Binary Numbers AND Sum data structures, implementation, math	1700	x6141
1066A	Vova and Train math	1100	x14499
1065A	Vasya and Chocolate implementation, math	800	x14614
1064B	Equations of Mathematical Magic math	1200	x7517
1064A	Make a triangle! brute force, geometry, math	800	x22346
1063E	Lasers and Mirrors constructive algorithms, math	3000	x347
1063D	Candies for Children brute force, math	2600	x430
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x3940
1062C	Banh-mi greedy, implementation, math	1600	x5401
1062B	Math greedy, math, number theory	1500	x8695
1061C	Multiplicity data structures, dp, implementation, math, number theory	1700	x8765
1061A	Coins greedy, implementation, math	800	x21791
1060D	Social Circles greedy, math	1900	x3623
1059C	Sequence Transformation constructive algorithms, math	1600	x7101
1056F	Write The Contest binary search, dp, math	2500	x652
1056B	Divide Candies math, number theory	1600	x4199
1055C	Lucky Days math, number theory	1900	x1905
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x177
1054G	New Road Network constructive algorithms, greedy, math	3300	x290
1054E	Chips Puzzle constructive algorithms, implementation, math	2400	x483
1051C	Vasya and Multisets brute force, dp, greedy, implementation, math	1500	x9265
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x17066
1047B	Cover Points geometry, math	900	x17148
1047A	Little C Loves 3 I math	800	x19850
1045H	Self-exploration math	2400	x372
1045F	Shady Lady geometry, math	3400	x101
1045D	Interstellar battle math, probabilities, trees	2200	x671
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2348
1043E	Train Hard, Win Easy constructive algorithms, greedy, math, sortings	1900	x2722
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x4426
1043A	Elections implementation, math	800	x10767
1042E	Vasya and Magic Matrix dp, math, probabilities	2300	x1749
1042C	Array Product constructive algorithms, greedy, math	1700	x4695
1041F	Ray in the tube data structures, divide and conquer, dp, math	2500	x1485
1041B	Buying a TV Set math	1000	x13931
1040B	Shashlik Cooking dp, greedy, math	1300	x7056
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2200	x1349
1039A	Timetable constructive algorithms, data structures, greedy, math	2300	x778
1038B	Non-Coprime Partition constructive algorithms, math	1100	x13493
1037F	Maximum Reduction combinatorics, data structures, math	2500	x1145
1037A	Packets constructive algorithms, greedy, math	1300	x11122
1036F	Relatively Prime Powers combinatorics, math, number theory	2400	x1590
1036B	Diagonal Walking v.2 math	1600	x5687
1036A	Function Height math	1000	x10109
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x638
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x371
1033D	Divisors interactive, math, number theory	2000	x2385
1033B	Square Difference math, number theory	1100	x9658
1032E	The Unbearable Lightness of Weights dp, math	2100	x1677
1031F	Familiar Operations brute force, graphs, math	2800	x276
1031A	Golden Plate implementation, math	800	x12839
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2561
1029D	Concatenated Multiples implementation, math	1900	x3849
1029C	Maximal Intersection greedy, math, sortings	1600	x7522
1029B	Creating the Contest dp, greedy, math	1200	x16843
1028H	Make Square math	2900	x487
1028B	Unnatural Conditions constructive algorithms, math	1200	x9024