Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
15:21:33
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Problems

#	Name
1182A	Filling Shapes dp, math	1000	x30859
1181A	Chunga-Changa greedy, math	1000	x13549
1180A	Alex and a Rhombus dp, implementation, math	800	x25101
1179C	Serge and Dining Room binary search, data structures, graph matchings, greedy, implementation, math, trees	2200	x2035
1178D	Prime Graph constructive algorithms, greedy, math, number theory	1500	x7384
1178C	Tiles combinatorics, greedy, math	1300	x11904
1176B	Merge it! math	1100	x17080
1175F	The Number of Subpermutations brute force, data structures, divide and conquer, hashing, math	2500	x1814
1175A	From Hero to Zero implementation, math	900	x18172
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1418
1170A	Three Integers Again *special problem, math		x1461
1169A	Circle Metro implementation, math	900	x11851
1168E	Xor Permutations constructive algorithms, math	3100	x373
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1619
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x11566
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2819
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x2156
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11449
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x8271
1165D	Almost All Divisors math, number theory	1600	x15923
1165A	Remainder implementation, math	1100	x13758
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x664
1163C2	Power Transmission (Hard Edition) data structures, geometry, implementation, math	1900	x3619
1163A	Eating Soup greedy, math	900	x12900
1159B	Expansion coefficient of the array implementation, math	1300	x7044
1159A	A pile of stones implementation, math	800	x12648
1158F	Density of subarrays dp, math	3500	x409
1158E	Strange device binary search, interactive, math, trees	3400	x151
1158D	Winding polygonal line constructive algorithms, geometry, greedy, math	2600	x836
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1934
1158B	The minimal unique substring constructive algorithms, math, strings	2200	x2222
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x7094
1157D	N Problems During K Days constructive algorithms, greedy, math	1900	x3738
1156F	Card Bag dp, math, probabilities	2300	x1392
1155E	Guess the Root brute force, interactive, math	2200	x1423
1155C	Alarm Clocks Everywhere math, number theory	1300	x9219
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2727
1154C	Gourmet Cat implementation, math	1400	x10375
1154B	Make Them Equal math	1200	x16558
1154A	Restoring Three Numbers math	800	x70130
1153F	Serval and Bonus Problem combinatorics, dp, math, probabilities	2600	x793
1153A	Serval and Bus brute force, math	1000	x11497
1152C	Neko does Maths brute force, math, number theory	1800	x6651
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8894
1152A	Neko Finds Grapes greedy, implementation, math	800	x15130
1151E	Number of Components combinatorics, data structures, dp, math	2100	x3320
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8387
1151C	Problem for Nazar constructive algorithms, math	1800	x5331
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x15152
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x320
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1670
1146D	Frog Jumping dfs and similar, math, number theory	2100	x1097
1144E	Median String bitmasks, math, number theory, strings	1900	x4143
1143B	Nirvana brute force, math, number theory	1200	x10476
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2000	x2932
1142A	The Beatles brute force, math	1700	x3415
1141E	Superhero Battle math	1700	x6725
1141C	Polycarp Restores Permutation math	1500	x11418
1141A	Game 23 implementation, math	1000	x31536
1140D	Minimum Triangulation dp, greedy, math	1200	x12551
1139D	Steps to One dp, math, number theory, probabilities	2300	x2292
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12539
1138B	Circus brute force, greedy, math, strings	1800	x4018
1136B	Nastya Is Playing Computer Games constructive algorithms, math	1000	x11676
1133D	Zero Quantity Maximization hashing, math, number theory	1500	x11712
1133B	Preparation for International Women's Day math, number theory	1200	x12717
1131A	Sea Battle math	800	x12394
1120B	Once in a casino constructive algorithms, greedy, implementation, math	2700	x418
1119H	Triple fft, math	3200	x558
1119C	Ramesses and Corner Inversion constructive algorithms, greedy, implementation, math	1500	x6822
1118A	Water Buying math	800	x20064
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1506
1117D	Magic Gems dp, math, matrices	2100	x4216
1117B	Emotes greedy, math, sortings	1000	x14317
1117A	Best Subsegment implementation, math	1100	x11001
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1942
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7368
1113A	Sasha and His Trip dp, greedy, math	900	x17261
1111D	Destroy the Colony combinatorics, dp, math	2600	x960
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6239
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6238
1110E	Magic Stones constructive algorithms, math, sortings	2200	x4153
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x9350
1110A	Parity math	900	x14973
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1332
1108C	Nice Garland brute force, greedy, math	1300	x11950
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x23115
1107D	Compression dp, implementation, math, number theory	1800	x3721
1107B	Digital root math, number theory	1000	x15555
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x974
1106C	Lunar New Year and Number Division greedy, implementation, math, sortings	900	x14650
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10330
1104B	Game with string data structures, implementation, math	1200	x14822
1104A	Splitting into digits constructive algorithms, implementation, math	800	x15391
1103E	Radix sum fft, math, number theory	3400	x232
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x841
1102A	Integer Sequence Dividing math	800	x24257
1101G	(Zero XOR Subset)-less math, matrices	2300	x1703
1101A	Minimum Integer math	1000	x17198
1100F	Ivan and Burgers data structures, divide and conquer, greedy, math	2500	x2399