Problemset - Codeforces

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Codeforces Round (Div. 2)
27:19:55
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Problems

#	Name
873C	Strange Game On Matrix greedy, two pointers	1600	x3224
873B	Balanced Substring dp, implementation	1500	x7605
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4495
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4582
868B	Race Against Time implementation	1400	x3658
865A	Save the problem! constructive algorithms	1400	x4213
864D	Make a Permutation! greedy, implementation, math	1500	x5973
864C	Bus greedy, implementation, math	1500	x5841
863D	Yet Another Array Queries Problem data structures, implementation	1800	x3186
863C	1-2-3 graphs, implementation	1800	x2461
863B	Kayaking brute force, greedy, sortings	1500	x7922
859C	Pie Rules dp, games	1500	x5318
858D	Polycarp's phone book data structures, implementation, sortings	1600	x3748
858C	Did you mean... dp, greedy, implementation	1500	x5595
858B	Which floor? brute force, implementation	1500	x3709
856A	Set Theory brute force, constructive algorithms	1600	x1400
855B	Marvolo Gaunt's Ring brute force, data structures, dp	1500	x8473
853B	Jury Meeting greedy, sortings, two pointers	1800	x2505
853A	Planning greedy	1500	x5813
852G	Bathroom terminal implementation	1700	x1278
851B	Arpa and an exam about geometry geometry, math	1400	x5467
850A	Five Dimensional Points brute force, geometry, math	1700	x3051
849B	Tell Your World brute force, geometry	1600	x3564
848A	From Y to Y constructive algorithms	1600	x5100
847K	Travel Cards greedy, implementation, sortings	1800	x1662
847H	Load Testing greedy	1600	x2377
847E	Packmen binary search, dp	1800	x2822
847C	Sum of Nestings constructive algorithms	1800	x2348
847B	Preparing for Merge Sort binary search, data structures	1600	x4761
847A	Union of Doubly Linked Lists implementation	1500	x3337
846F	Random Query data structures, math, probabilities, two pointers	1800	x2227
846C	Four Segments brute force, data structures, dp	1800	x2640
846B	Math Show brute force, greedy	1800	x2478
846A	Curriculum Vitae brute force, implementation	1500	x4187
845D	Driving Test data structures, dp, greedy	1800	x2346
845C	Two TVs data structures, greedy, sortings	1500	x8259
845B	Luba And The Ticket brute force, greedy, implementation	1600	x4965
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5586
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x16324
838A	Binary Blocks brute force	1400	x913
837C	Two Seals brute force, implementation	1500	x3963
837B	Flag of Berland brute force, implementation	1600	x3910
835C	Star sky dp, implementation	1600	x7724
833A	The Meaningless Game math, number theory	1700	x6126
832B	Petya and Exam implementation, strings	1600	x4358
831C	Jury Marks brute force, constructive algorithms	1700	x4460
830B	Cards Sorting data structures, implementation, sortings	1600	x2816
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x6772
827B	High Load constructive algorithms, greedy, implementation, trees	1800	x3451
827A	String Reconstruction data structures, greedy, sortings, strings	1700	x3975
825D	Suitable Replacement binary search, greedy, implementation	1500	x3211
825C	Multi-judge Solving greedy, implementation	1600	x4444
825B	Five-In-a-Row brute force, implementation	1600	x4102
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x2985
822C	Hacker, pack your bags! binary search, greedy, implementation, sortings	1600	x4554
821C	Okabe and Boxes data structures, greedy, trees	1500	x6734
818D	Multicolored Cars data structures, implementation	1700	x3428
818B	Permutation Game implementation	1600	x2991
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7192
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5631
816B	Karen and Coffee binary search, data structures, implementation	1400	x17114
815A	Karen and Game brute force, greedy, implementation	1700	x5595
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6399
813C	The Tag Game dfs and similar, graphs	1700	x5809
813B	The Golden Age brute force, math	1800	x3873
812C	Sagheer and Nubian Market binary search, sortings	1500	x13458
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5136
809A	Do you want a date? implementation, math, sortings	1500	x4680
808C	Tea Party constructive algorithms, greedy, sortings	1400	x6052
804B	Minimum number of steps combinatorics, greedy, implementation, math	1400	x9582
803A	Maximal Binary Matrix constructive algorithms	1400	x4771
802J	Send the Fool Further! (easy) dfs and similar, graphs, trees	1400	x4410
802B	Heidi and Library (medium) data structures, greedy	1800	x1103
802A	Heidi and Library (easy) greedy	1800	x1351
799C	Fountains binary search, data structures, implementation	1800	x3690
799B	T-shirt buying data structures, implementation	1400	x8641
798C	Mike and gcd problem dp, greedy, number theory	1700	x5688
797C	Minimal string data structures, greedy, strings	1700	x6453
797B	Odd sum dp, greedy, implementation	1400	x10351
794C	Naming Company games, greedy, sortings	1800	x3073
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4396
789B	Masha and geometric depression brute force, implementation, math	1700	x4362
788A	Functions again dp, two pointers	1600	x9023
785C	Anton and Fairy Tale binary search, math	1600	x7271
784C	INTERCALC *special problem, implementation	1800	x708
784A	Numbers Joke *special problem	1700	x3160
780C	Andryusha and Colored Balloons dfs and similar, graphs, greedy, trees	1600	x8940
780B	The Meeting Place Cannot Be Changed binary search	1600	x9238
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2285
778A	String Game binary search, greedy, strings	1700	x11315
777D	Cloud of Hashtags binary search, greedy, implementation, strings	1800	x4959
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x6323
776C	Molly's Chemicals binary search, brute force, data structures, implementation, math	1800	x5851
774K	Stepan and Vowels *special problem, implementation, strings	1600	x1261
774D	Lie or Truth *special problem, constructive algorithms, implementation, sortings	1500	x1932
773A	Success Rate binary search, math	1700	x4418
772B	Volatile Kite geometry	1800	x3153
772A	Voltage Keepsake binary search, math	1800	x4175
771B	Bear and Different Names constructive algorithms, greedy	1500	x6705
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x14969