Problemset - Codeforces

Problems

#	Name
678C	Joty and Chocolate implementation, math, number theory	1600	x9564
678B	The Same Calendar implementation	1600	x4144
678A	Johny Likes Numbers implementation, math	800	x13372
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x603
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1704
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6449
677B	Vanya and Food Processor implementation, math	1400	x7667
677A	Vanya and Fence implementation	800	x144021
676E	The Last Fight Between Human and AI math	2400	x897
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1865
676C	Vasya and String binary search, dp, strings, two pointers	1500	x19066
676B	Pyramid of Glasses implementation, math, math	1500	x5532
676A	Nicholas and Permutation constructive algorithms, implementation	800	x13857
675E	Trains and Statistic data structures, dp, greedy	2300	x2793
675D	Tree Construction data structures, trees	1800	x3818
675C	Money Transfers constructive algorithms, data structures, greedy, sortings	2100	x3663
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7425
675A	Infinite Sequence math	1100	x14997
673B	Problems for Round greedy, implementation	1300	x3524
673A	Bear and Game implementation	800	x10091
672B	Different is Good constructive algorithms, implementation, strings	1000	x17444
672A	Summer Camp implementation	800	x15378
671E	Organizing a Race data structures, greedy	3300	x415
671D	Roads in Yusland data structures, dp, greedy	2900	x1183
671C	Ultimate Weirdness of an Array data structures, number theory	2800	x688
671B	Robin Hood binary search, greedy	2000	x3039
671A	Recycling Bottles dp, geometry, greedy, implementation	1800	x4193
670F	Restore a Number brute force, constructive algorithms, strings	2300	x862
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3241
670D2	Magic Powder - 2 binary search, implementation	1500	x14690
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x18295
670C	Cinema implementation, sortings	1300	x9205
670B	Game of Robots implementation	1000	x11293
670A	Holidays brute force, constructive algorithms, greedy, math	900	x17086
669A	Little Artem and Presents math	800	x10859
667B	Coat of Anticubism constructive algorithms, geometry	1100	x5638
667A	Pouring Rain geometry, math	1100	x8055
666E	Forensic Examination data structures, string suffix structures	3100	x1404
666D	Chain Reaction brute force, geometry	3000	x281
666C	Codeword combinatorics, strings	2500	x787
666B	World Tour graphs, shortest paths	2000	x2179
666A	Reberland Linguistics dp, implementation, strings	1800	x3557
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x623
665E	Beautiful Subarrays data structures, divide and conquer, strings, trees	2100	x3241
665D	Simple Subset constructive algorithms, greedy, number theory	1800	x3605
665C	Simple Strings dp, greedy, strings	1300	x10661
665B	Shopping brute force	1400	x3558
665A	Buses Between Cities implementation	1600	x2952
664A	Complicated GCD math, number theory	800	x18405
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3303
662E	To Hack or not to Hack brute force, dp, greedy	3100	x139
662D	International Olympiad constructive algorithms, greedy, implementation, math	2000	x1635
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x2037
662B	Graph Coloring dfs and similar, graphs	2200	x1511
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x486
661H	Rotate Matrix *special problem	2400	x69
661G	Hungarian Notation *special problem	2200	x56
661F	Primes in Interval *special problem	1900	x351
661E	Divisibility Check *special problem	2000	x84
661D	Maximal Difference *special problem	2100	x132
661C	Array Sum *special problem	2000	x132
661B	Seasons *special problem	1900	x228
661A	Lazy Caterer Sequence *special problem	1300	x638
660F	Bear and Bowling 4 binary search, data structures, divide and conquer, geometry, ternary search	2500	x1685
660E	Different Subsets For All Tuples combinatorics, math	2300	x1529
660D	Number of Parallelograms geometry	1900	x4016
660C	Hard Process binary search, dp, two pointers	1600	x9550
660B	Seating On Bus implementation	1000	x5383
660A	Co-prime Array greedy, implementation, math, number theory	1200	x9049
659G	Fence Divercity combinatorics, dp, number theory	2300	x1208
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1810
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7492
659D	Bicycle Race geometry, implementation, math	1500	x6342
659C	Tanya and Toys greedy, implementation	1200	x11507
659B	Qualifying Contest constructive algorithms, sortings	1300	x6302
659A	Round House implementation, math	1000	x15882
658A	Bear and Reverse Radewoosh implementation	800	x7101
656G	You're a Professional *special problem	1900	x487
656F	Ace It! *special problem	1900	x910
656E	Out of Controls *special problem	2000	x728
656D	Rosetta Problem *special problem	2100	x961
656C	Without Text *special problem	2000	x694
656B	Scrambled *special problem, implementation	1700	x1655
656A	Da Vinci Powers *special problem	1900	x3624
653G	Move by Prime combinatorics, math, number theory	3100	x558
653F	Paper task data structures, string suffix structures, strings	2600	x995
653E	Bear and Forgotten Tree 2 dfs and similar, dsu, graphs, trees	2400	x1544
653D	Delivery Bears binary search, flows, graphs	2200	x2506
653C	Bear and Up-Down brute force, implementation	1900	x1652
653B	Bear and Compressing brute force, dfs and similar, dp, strings	1300	x5018
653A	Bear and Three Balls brute force, implementation, sortings	900	x8252
652F	Ants on a Circle constructive algorithms, math	2800	x557
652E	Pursuit For Artifacts dfs and similar, dsu, graphs, trees	2300	x2226
652D	Nested Segments data structures, sortings	1800	x4038
652C	Foe Pairs combinatorics, sortings, two pointers	1800	x3256
652B	z-sort sortings	1000	x10349
652A	Gabriel and Caterpillar implementation, math	1400	x4790
651B	Beautiful Paintings greedy, sortings	1200	x11605
651A	Joysticks dp, greedy, implementation, math	1100	x23054
650E	Clockwork Bomb data structures, dfs and similar, dsu, greedy, trees	3200	x603