Problemset - Codeforces

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Codeforces Round (Div. 2)
31:03:21
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Problems

#	Name
683C	Symmetric Difference *special problem	1600	x315
683B	The Teacher of Physical Education *special problem	1600	x317
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x7076
681C	Heap Operations constructive algorithms, data structures, greedy	1600	x7446
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12588
678D	Iterated Linear Function math, number theory	1700	x4442
678C	Joty and Chocolate implementation, math, number theory	1600	x9283
678B	The Same Calendar implementation	1600	x4065
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6336
677B	Vanya and Food Processor implementation, math	1400	x7579
676C	Vasya and String binary search, dp, strings, two pointers	1500	x18439
676B	Pyramid of Glasses implementation, math, math	1500	x5473
675D	Tree Construction data structures, trees	1800	x3730
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7340
671A	Recycling Bottles dp, geometry, greedy, implementation	1800	x4171
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3176
670D2	Magic Powder - 2 binary search, implementation	1500	x13661
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x16855
666A	Reberland Linguistics dp, implementation, strings	1800	x3434
665D	Simple Subset constructive algorithms, greedy, number theory	1800	x3329
665B	Shopping brute force	1400	x3508
665A	Buses Between Cities implementation	1600	x2900
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3276
660C	Hard Process binary search, dp, two pointers	1600	x9222
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7387
659D	Bicycle Race geometry, implementation, math	1500	x6233
656B	Scrambled *special problem, implementation	1700	x1644
652D	Nested Segments data structures, sortings	1800	x3891
652C	Foe Pairs combinatorics, sortings, two pointers	1800	x3147
652A	Gabriel and Caterpillar implementation, math	1400	x4591
650A	Watchmen data structures, geometry, math	1400	x15265
649D	Дефрагментация памяти constructive algorithms, greedy, implementation	1600	x346
649C	Печать условий constructive algorithms, greedy, sortings	1500	x442
649B	Этажи constructive algorithms	1400	x527
645D	Robot Rapping Results Report binary search, dp, graphs	1800	x2816
645C	Enduring Exodus binary search, two pointers	1600	x3191
644B	Processing Queries *special problem, constructive algorithms, data structures, two pointers	1700	x2629
643B	Bear and Two Paths constructive algorithms, graphs	1600	x3152
643A	Bear and Colors implementation	1500	x4121
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x2895
641B	Little Artem and Matrix implementation	1400	x3838
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6455
638D	Three-dimensional Turtle Super Computer brute force, dfs and similar, graphs	1800	x703
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1546
638B	Making Genome in Berland *special problem, dfs and similar, strings	1500	x1952
637D	Running with Obstacles *special problem, data structures, dp, greedy	1600	x1980
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2413
632C	The Smallest String Concatenation sortings, strings	1700	x7499
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x3941
631C	Report data structures, sortings	1700	x3763
630Q	Pyramids geometry, math	1700	x1250
630M	Turn geometry, math	1800	x1135
630L	Cracking the Code implementation, math	1400	x3525
630K	Indivisibility math, number theory	1500	x5174
630I	Parking Lot combinatorics, math	1700	x6507
630H	Benches combinatorics, math	1400	x4882
630G	Challenge Pennants combinatorics, math	1600	x2698
627B	Factory Repairs data structures	1700	x2737
627A	XOR Equation dp, math	1700	x4045
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2694
626C	Block Towers brute force, greedy, math, number theory	1600	x4316
625A	Guest From the Past implementation, math	1700	x5371
623A	Graph and String constructive algorithms, graphs	1800	x4417
622C	Not Equal on a Segment data structures, implementation	1700	x6343
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5384
620C	Pearls in a Row greedy	1500	x6582
618C	Constellation geometry, implementation	1600	x4204
617D	Polyline constructive algorithms, implementation	1700	x4178
617C	Watering Flowers implementation	1600	x4824
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x9045
616C	The Labyrinth dfs and similar	1600	x5472
615B	Longtail Hedgehog dp, graphs	1600	x5002
614B	Gena's Code implementation, math	1400	x6833
614A	Link/Cut Tree brute force, implementation	1500	x7425
612D	The Union of k-Segments greedy, sortings	1800	x3752
612C	Replace To Make Regular Bracket Sequence data structures, expression parsing, math	1400	x7846
611C	New Year and Domino dp, implementation	1500	x8402
610C	Harmony Analysis constructive algorithms	1800	x2811
609C	Load Balancing implementation, math	1500	x6413
608B	Hamming Distance Sum combinatorics, strings	1500	x6712
607A	Chain Reaction binary search, dp	1600	x9439
606B	Testing Robots implementation	1600	x2737
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3407
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7068
604B	More Cowbell binary search, greedy	1400	x8347
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2551
603A	Alternative Thinking dp, greedy, math	1600	x7598
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10624
601A	The Two Routes graphs, shortest paths	1600	x11641
600C	Make Palindrome constructive algorithms, greedy, strings	1800	x5960
600A	Extract Numbers implementation, strings	1600	x5127
599C	Day at the Beach sortings	1600	x4608
599B	Spongebob and Joke implementation	1500	x4352
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10768
597B	Restaurant dp, greedy, sortings	1600	x4722
597A	Divisibility math	1600	x4449
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2242
595B	Pasha and Phone binary search, math	1600	x2902
593B	Anton and Lines geometry, sortings	1600	x3962
592C	The Big Race math	1800	x3052