Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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Problems

#	Name
173C	Spiral Maximum brute force, dp	1900	x989
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1466
171C	A Piece of Cake *special problem, implementation	2000	x1095
166B	Polygons geometry, sortings	2100	x2487
165D	Beard Graph data structures, dsu, trees	2100	x1675
164B	Ancient Berland Hieroglyphs two pointers	2000	x472
163C	Conveyor sortings, two pointers	2100	x558
163B	Lemmings binary search	2000	x1067
162I	Truncatable primes *special problem	2000	x77
162G	Non-decimal sum *special problem	2000	x65
162D	Remove digits *special problem	1900	x228
158E	Phone Talks *special problem, dp, sortings	1900	x1463
156C	Cipher combinatorics, dp	2000	x2429
153E	Euclidean Distance *special problem	2100	x80
153D	Date Change *special problem	2000	x83
149D	Coloring Brackets dp	1900	x3917
148E	Porcelain dp	1900	x4092
145C	Lucky Subsequence combinatorics, dp, math	2100	x1911
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x4035
138B	Digits Permutations greedy	1900	x1039
137E	Last Chance data structures, implementation, strings	2000	x1243
137D	Palindromes dp, strings	1900	x1524
135C	Zero-One constructive algorithms, games, greedy	1900	x1349
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x2052
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x618
132B	Piet implementation	2100	x663
131F	Present to Mom binary search, two pointers	2000	x649
128D	Numbers constructive algorithms, implementation	2000	x1147
128C	Games with Rectangle combinatorics, dp	2000	x2971
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2601
126C	E-reader Display constructive algorithms, greedy	2000	x723
126A	Hot Bath binary search, brute force, math	1900	x1437
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1288
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x936
119C	Education Reform dp	2000	x927
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1079
118E	Bertown roads dfs and similar, graphs	2000	x6760
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2603
117C	Cycle dfs and similar, graphs	2000	x2649
113B	Petr# brute force, data structures, hashing, strings	2000	x2835
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1392
111B	Petya and Divisors binary search, data structures, number theory	1900	x3697
109D	Lucky Sorting constructive algorithms, sortings	2000	x814
109C	Lucky Tree dp, dsu, trees	1900	x3623
109B	Lucky Probability brute force, probabilities	1900	x1556
106E	Space Rescuers geometry, ternary search	2100	x873
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2131
103C	Russian Roulette constructive algorithms, greedy	1900	x961
101C	Vectors implementation, math	2000	x703
100H	Battleship *special problem, dfs and similar, implementation	2100	x79
95C	Volleyball shortest paths	1900	x2812
93B	End of Exams greedy	1900	x921
87C	Interesting Game dp, games, math	2000	x1386
82D	Two out of Three dp	2000	x2047
82C	General Mobilization data structures, dfs and similar, sortings	2000	x811
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x653
78C	Beaver Game dp, games, number theory	2000	x1888
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x1038
76B	Mice greedy, two pointers	2100	x752
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1832
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1290
73B	Need For Brake binary search, greedy, sortings	2000	x507
72F	Oil *special problem, greedy, math	1900	x120
69D	Dot dp, games	1900	x1014
69C	Game implementation	2000	x592
67D	Optical Experiment binary search, data structures, dp	1900	x1456
66E	Petya and Post data structures, dp	2000	x759
65C	Harry Potter and the Golden Snitch binary search, geometry	2100	x789
64F	Domain *special problem, expression parsing	2000	x181
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x766
63D	Dividing Island constructive algorithms	1900	x1269
61E	Enemy is weak data structures, trees	1900	x11372
61C	Capture Valerian math	2000	x718
60C	Mushroom Strife brute force, dfs and similar	2100	x567
59E	Shortest Path graphs, shortest paths	2000	x3482
59D	Team Arrangement constructive algorithms, greedy, implementation	2000	x638
58D	Calendar greedy, strings	2000	x734
57C	Array combinatorics, math	1900	x2695
56D	Changing a String dp	2100	x1650
55C	Pie or die games	1900	x1656
54D	Writing a Song brute force, dp, strings	2100	x547
54C	First Digit Law dp, math, probabilities	2000	x1327
50D	Bombing binary search, dp, probabilities	2100	x635
50C	Happy Farm 5 geometry	2000	x771
48E	Ivan the Fool VS Gorynych the Dragon dp, games, graphs	2100	x588
47C	Crossword implementation	2000	x790
46E	Comb data structures, dp	1900	x965
45H	Road Problem graphs	2100	x193
45E	Director constructive algorithms, greedy	2000	x551
45D	Event Dates greedy, meet-in-the-middle, sortings	1900	x1702
45C	Dancing Lessons data structures	1900	x920
44J	Triminoes constructive algorithms, greedy	2000	x576
43D	Journey brute force, constructive algorithms, implementation	2000	x1091
41E	3-cycles constructive algorithms, graphs, greedy	1900	x1978
41D	Pawn dp	1900	x2445
39E	What Has Dirichlet Got to Do with That? dp, games	2000	x884
39C	Moon Craters dp, sortings	2100	x605
39A	C*++ Calculations expression parsing, greedy	2000	x705
38F	Smart Boy dp, games, strings	2100	x393
38D	Vasya the Architect implementation	1900	x500