Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
19:48:23
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Problems

#	Name
685C	Optimal Point binary search, math	2900	x582
685B	Kay and Snowflake data structures, dfs and similar, dp, trees	1900	x4039
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4219
683J	The Hero with Bombs *special problem	3000	x40
683I	Loader *special problem, graphs	2500	x38
683H	Exchange of Books *special problem	1900	x95
683G	The Fraction *special problem	1900	x130
683F	Reformat the String *special problem	1800	x146
683E	Hammer throwing *special problem	1800	x187
683D	Chocolate Bar *special problem, math	1400	x322
683C	Symmetric Difference *special problem	1600	x315
683B	The Teacher of Physical Education *special problem	1600	x317
683A	The Check of the Point *special problem, geometry	1200	x787
682E	Alyona and Triangles geometry, two pointers	2600	x662
682D	Alyona and Strings dp, strings	1900	x3286
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x7194
682B	Alyona and Mex sortings	1200	x11341
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x21536
681E	Runaway to a Shadow geometry, sortings	2500	x461
681D	Gifts by the List constructive algorithms, dfs and similar, graphs, trees	2000	x1761
681C	Heap Operations constructive algorithms, data structures, greedy	1600	x7689
681B	Economy Game brute force	1300	x8887
681A	A Good Contest implementation	800	x15375
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x24242
680A	Bear and Five Cards constructive algorithms, implementation	800	x12303
679E	Bear and Bad Powers of 42 data structures	3100	x683
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x315
679C	Bear and Square Grid dfs and similar, dsu, implementation	2400	x1152
679B	Bear and Tower of Cubes binary search, dp, greedy	2200	x2139
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12917
678F	Lena and Queries data structures, divide and conquer, geometry	2500	x871
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x2194
678D	Iterated Linear Function math, number theory	1700	x4489
678C	Joty and Chocolate implementation, math, number theory	1600	x9371
678B	The Same Calendar implementation	1600	x4104
678A	Johny Likes Numbers implementation, math	800	x13239
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x603
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1578
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6394
677B	Vanya and Food Processor implementation, math	1400	x7619
677A	Vanya and Fence implementation	800	x139291
676E	The Last Fight Between Human and AI math	2400	x887
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1858
676C	Vasya and String binary search, dp, strings, two pointers	1500	x18726
676B	Pyramid of Glasses implementation, math, math	1500	x5491
676A	Nicholas and Permutation constructive algorithms, implementation	800	x13802
675E	Trains and Statistic data structures, dp, greedy	2300	x2726
675D	Tree Construction data structures, trees	1800	x3779
675C	Money Transfers constructive algorithms, data structures, greedy, sortings	2100	x3641
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7366
675A	Infinite Sequence math	1100	x14922
673B	Problems for Round greedy, implementation	1300	x3518
673A	Bear and Game implementation	800	x10042
672B	Different is Good constructive algorithms, implementation, strings	1000	x17310
672A	Summer Camp implementation	800	x15290
671E	Organizing a Race data structures, greedy	3300	x407
671D	Roads in Yusland data structures, dp, greedy	2900	x1144
671C	Ultimate Weirdness of an Array data structures, number theory	2800	x685
671B	Robin Hood binary search, greedy	2000	x3015
671A	Recycling Bottles dp, geometry, greedy, implementation	1800	x4177
670F	Restore a Number brute force, constructive algorithms, strings	2300	x855
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3202
670D2	Magic Powder - 2 binary search, implementation	1500	x14164
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x17566
670C	Cinema implementation, sortings	1300	x9100
670B	Game of Robots implementation	1000	x11189
670A	Holidays brute force, constructive algorithms, greedy, math	900	x16886
669A	Little Artem and Presents math	800	x10764
667B	Coat of Anticubism constructive algorithms, geometry	1100	x5605
667A	Pouring Rain geometry, math	1100	x8006
666E	Forensic Examination data structures, string suffix structures	3100	x1393
666D	Chain Reaction brute force, geometry	3000	x279
666C	Codeword combinatorics, strings	2500	x781
666B	World Tour graphs, shortest paths	2000	x2159
666A	Reberland Linguistics dp, implementation, strings	1800	x3464
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x609
665E	Beautiful Subarrays data structures, divide and conquer, strings, trees	2100	x3114
665D	Simple Subset constructive algorithms, greedy, number theory	1800	x3473
665C	Simple Strings dp, greedy, strings	1300	x10214
665B	Shopping brute force	1400	x3534
665A	Buses Between Cities implementation	1600	x2922
664A	Complicated GCD math, number theory	800	x18083
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3288
662E	To Hack or not to Hack brute force, dp, greedy	3100	x138
662D	International Olympiad constructive algorithms, greedy, implementation, math	2000	x1629
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x2007
662B	Graph Coloring dfs and similar, graphs	2200	x1469
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x465
661H	Rotate Matrix *special problem	2400	x69
661G	Hungarian Notation *special problem	2200	x56
661F	Primes in Interval *special problem	1900	x313
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	x637
660F	Bear and Bowling 4 binary search, data structures, divide and conquer, geometry, ternary search	2500	x1627
660E	Different Subsets For All Tuples combinatorics, math	2300	x1498
660D	Number of Parallelograms geometry	1900	x3968
660C	Hard Process binary search, dp, two pointers	1600	x9318