Problemset - Codeforces

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Educational Codeforces Round 169 (Rated for Div. 2)
10:16:13
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Problems

#	Name
678D	Iterated Linear Function math, number theory	1700	x4464
678C	Joty and Chocolate implementation, math, number theory	1600	x9324
678B	The Same Calendar implementation	1600	x4095
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6347
677B	Vanya and Food Processor implementation, math	1400	x7590
676C	Vasya and String binary search, dp, strings, two pointers	1500	x18525
676B	Pyramid of Glasses implementation, math, math	1500	x5482
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7353
673B	Problems for Round greedy, implementation	1300	x3507
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3186
670D2	Magic Powder - 2 binary search, implementation	1500	x13824
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x17111
670C	Cinema implementation, sortings	1300	x9047
665C	Simple Strings dp, greedy, strings	1300	x9898
665B	Shopping brute force	1400	x3514
665A	Buses Between Cities implementation	1600	x2910
661A	Lazy Caterer Sequence *special problem	1300	x633
660C	Hard Process binary search, dp, two pointers	1600	x9255
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7412
659D	Bicycle Race geometry, implementation, math	1500	x6280
659B	Qualifying Contest constructive algorithms, sortings	1300	x6229
656B	Scrambled *special problem, implementation	1700	x1648
653B	Bear and Compressing brute force, dfs and similar, dp, strings	1300	x4935
652A	Gabriel and Caterpillar implementation, math	1400	x4599
650A	Watchmen data structures, geometry, math	1400	x15337
649D	Дефрагментация памяти constructive algorithms, greedy, implementation	1600	x349
649C	Печать условий constructive algorithms, greedy, sortings	1500	x444
649B	Этажи constructive algorithms	1400	x527
645C	Enduring Exodus binary search, two pointers	1600	x3211
644B	Processing Queries *special problem, constructive algorithms, data structures, two pointers	1700	x2636
643B	Bear and Two Paths constructive algorithms, graphs	1600	x3156
643A	Bear and Colors implementation	1500	x4130
641B	Little Artem and Matrix implementation	1400	x3975
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6474
638B	Making Genome in Berland *special problem, dfs and similar, strings	1500	x1956
637D	Running with Obstacles *special problem, data structures, dp, greedy	1600	x1992
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2417
634A	Island Puzzle constructive algorithms, implementation	1300	x3297
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6634
632C	The Smallest String Concatenation sortings, strings	1700	x7575
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x3951
631C	Report data structures, sortings	1700	x3770
630Q	Pyramids geometry, math	1700	x1256
630N	Forecast math	1300	x4621
630L	Cracking the Code implementation, math	1400	x3543
630K	Indivisibility math, number theory	1500	x5198
630I	Parking Lot combinatorics, math	1700	x6580
630H	Benches combinatorics, math	1400	x4903
630G	Challenge Pennants combinatorics, math	1600	x2716
630F	Selection of Personnel combinatorics, math	1300	x6752
628C	Bear and String Distance greedy, strings	1300	x5787
628B	New Skateboard dp	1300	x10543
627B	Factory Repairs data structures	1700	x2890
627A	XOR Equation dp, math	1700	x4180
626C	Block Towers brute force, greedy, math, number theory	1600	x4319
626B	Cards constructive algorithms, dp, math	1300	x6577
625C	K-special Tables constructive algorithms, implementation	1300	x6793
625A	Guest From the Past implementation, math	1700	x5377
622C	Not Equal on a Segment data structures, implementation	1700	x6373
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5412
621B	Wet Shark and Bishops combinatorics, implementation	1300	x10910
620C	Pearls in a Row greedy	1500	x6623
618C	Constellation geometry, implementation	1600	x4213
617D	Polyline constructive algorithms, implementation	1700	x4185
617C	Watering Flowers implementation	1600	x4835
617B	Chocolate combinatorics	1300	x17685
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x9149
616C	The Labyrinth dfs and similar	1600	x5507
615B	Longtail Hedgehog dp, graphs	1600	x5013
614B	Gena's Code implementation, math	1400	x6857
614A	Link/Cut Tree brute force, implementation	1500	x7434
612C	Replace To Make Regular Bracket Sequence data structures, expression parsing, math	1400	x7893
612A	The Text Splitting brute force, implementation, strings	1300	x7134
611C	New Year and Domino dp, implementation	1500	x8419
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9987
610B	Vika and Squares constructive algorithms, implementation	1300	x7172
609C	Load Balancing implementation, math	1500	x6444
608B	Hamming Distance Sum combinatorics, strings	1500	x6753
607A	Chain Reaction binary search, dp	1600	x9479
606B	Testing Robots implementation	1600	x2739
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3417
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7086
604B	More Cowbell binary search, greedy	1400	x8373
603A	Alternative Thinking dp, greedy, math	1600	x7607
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x10684
601A	The Two Routes graphs, shortest paths	1600	x11708
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x28886
600A	Extract Numbers implementation, strings	1600	x5159
599C	Day at the Beach sortings	1600	x4610
599B	Spongebob and Joke implementation	1500	x4354
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10830
598B	Queries on a String implementation, strings	1300	x10784
597B	Restaurant dp, greedy, sortings	1600	x4755
597A	Divisibility math	1600	x4466
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2242
595B	Pasha and Phone binary search, math	1600	x2904
593B	Anton and Lines geometry, sortings	1600	x3963
590A	Median Smoothing implementation	1700	x3912
588B	Duff in Love math	1300	x14005
587A	Duff and Weight Lifting greedy	1500	x7458