Problemset - Codeforces

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

#	Name
838A	Binary Blocks brute force	1400	x933
837C	Two Seals brute force, implementation	1500	x4018
837B	Flag of Berland brute force, implementation	1600	x3951
835C	Star sky dp, implementation	1600	x7964
833A	The Meaningless Game math, number theory	1700	x6217
832B	Petya and Exam implementation, strings	1600	x4386
831C	Jury Marks brute force, constructive algorithms	1700	x4600
830B	Cards Sorting data structures, implementation, sortings	1600	x2849
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x7121
827B	High Load constructive algorithms, greedy, implementation, trees	1800	x3542
827A	String Reconstruction data structures, greedy, sortings, strings	1700	x4052
825D	Suitable Replacement binary search, greedy, implementation	1500	x3322
825C	Multi-judge Solving greedy, implementation	1600	x4560
825B	Five-In-a-Row brute force, implementation	1600	x4279
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x3107
822C	Hacker, pack your bags! binary search, greedy, implementation, sortings	1600	x4603
821C	Okabe and Boxes data structures, greedy, trees	1500	x6974
818D	Multicolored Cars data structures, implementation	1700	x3535
818B	Permutation Game implementation	1600	x3022
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7489
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5789
816B	Karen and Coffee binary search, data structures, implementation	1400	x18428
815A	Karen and Game brute force, greedy, implementation	1700	x5675
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6679
813C	The Tag Game dfs and similar, graphs	1700	x6068
813B	The Golden Age brute force, math	1800	x4002
812C	Sagheer and Nubian Market binary search, sortings	1500	x14150
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5216
809A	Do you want a date? implementation, math, sortings	1500	x4706
808C	Tea Party constructive algorithms, greedy, sortings	1400	x6211
804B	Minimum number of steps combinatorics, greedy, implementation, math	1400	x9691
803A	Maximal Binary Matrix constructive algorithms	1400	x4947
802J	Send the Fool Further! (easy) dfs and similar, graphs, trees	1400	x4771
802B	Heidi and Library (medium) data structures, greedy	1800	x1142
802A	Heidi and Library (easy) greedy	1800	x1388
799C	Fountains binary search, data structures, implementation	1800	x3782
799B	T-shirt buying data structures, implementation	1400	x8936
798C	Mike and gcd problem dp, greedy, number theory	1700	x5841
797C	Minimal string data structures, greedy, strings	1700	x6809
797B	Odd sum dp, greedy, implementation	1400	x10640
794C	Naming Company games, greedy, sortings	1800	x3148
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4466
789B	Masha and geometric depression brute force, implementation, math	1700	x4388
788A	Functions again dp, two pointers	1600	x9150
785C	Anton and Fairy Tale binary search, math	1600	x7407
784C	INTERCALC *special problem, implementation	1800	x727
784A	Numbers Joke *special problem	1700	x3187
780C	Andryusha and Colored Balloons dfs and similar, graphs, greedy, trees	1600	x9162
780B	The Meeting Place Cannot Be Changed binary search	1600	x9835
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2330
778A	String Game binary search, greedy, strings	1700	x11676
777D	Cloud of Hashtags binary search, greedy, implementation, strings	1800	x5037
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x6421
776C	Molly's Chemicals binary search, brute force, data structures, implementation, math	1800	x5958
774K	Stepan and Vowels *special problem, implementation, strings	1600	x1280
774D	Lie or Truth *special problem, constructive algorithms, implementation, sortings	1500	x1955
773A	Success Rate binary search, math	1700	x4483
772B	Volatile Kite geometry	1800	x3317
772A	Voltage Keepsake binary search, math	1800	x4369
771B	Bear and Different Names constructive algorithms, greedy	1500	x6931
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x15486
770D	Draw Brackets! *special problem, implementation	1400	x1578
770C	Online Courses In BSU *special problem, dfs and similar, graphs, implementation	1500	x2659
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2355
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2307
768C	Jon Snow and his Favourite Number brute force, dp, implementation, sortings	1800	x3814
768B	Code For 1 constructive algorithms, dfs and similar, divide and conquer	1600	x6004
766C	Mahmoud and a Message brute force, dp, greedy, strings	1700	x4501
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2486
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10639
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x8312
762A	k-th divisor math, number theory	1400	x20138
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x4068
761C	Dasha and Password brute force, dp, implementation	1500	x5887
760B	Frodo and pillows binary search, greedy	1500	x6633
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3885
757B	Bash's Big Day greedy, math, number theory	1400	x10325
756B	Travel Card binary search, dp	1600	x3685
756A	Pavel and barbecue constructive algorithms, dfs and similar	1700	x3072
753B	Interactive Bulls and Cows (Easy) brute force, constructive algorithms, implementation	1600	x1212
750C	New Year and Rating binary search, greedy, math	1600	x6569
749C	Voting greedy, implementation, two pointers	1500	x5991
748C	Santa Claus and Robot constructive algorithms, math	1400	x4634
748B	Santa Claus and Keyboard Check implementation, strings	1500	x5374
747E	Comments dfs and similar, expression parsing, implementation, strings	1700	x1975
747D	Winter Is Coming dp, greedy, sortings	1800	x3284
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x5123
746C	Tram constructive algorithms, implementation, math	1600	x3740
745B	Hongcow Solves A Puzzle implementation	1400	x3747
744A	Hongcow Builds A Nation dfs and similar, graphs	1500	x8466
743D	Chloe and pleasant prizes dfs and similar, dp, graphs, trees	1800	x4380
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x12385
742B	Arpa’s obvious problem and Mehrdad’s terrible solution brute force, math, number theory	1500	x9315
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5292
741A	Arpa's loud Owf and Mehrdad's evil plan dfs and similar, math	1600	x5442
739A	Alyona and mex constructive algorithms, greedy	1700	x7885
735D	Taxes math, number theory	1600	x13622
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7546
734D	Anton and Chess implementation	1700	x3744
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x5347