Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
29:33:06
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Problems

#	Name
758F	Geometrical Progression brute force, math, number theory	2400	x637
758E	Broken Tree dfs and similar, dp, graphs, greedy, trees	2600	x496
758D	Ability To Convert constructive algorithms, dp, greedy, math, strings	2000	x2734
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3885
758B	Blown Garland brute force, implementation, number theory	1100	x10220
758A	Holiday Of Equality implementation, math	800	x61571
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x506
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1167
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1337
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1407
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2373
757B	Bash's Big Day greedy, math, number theory	1400	x10305
757A	Gotta Catch Em' All! implementation	1000	x11272
756F	Long number expression parsing, math, number theory	3400	x99
756E	Byteland coins combinatorics, dp, math	3200	x177
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x1005
756C	Nikita and stack data structures	2200	x1351
756B	Travel Card binary search, dp	1600	x3592
756A	Pavel and barbecue constructive algorithms, dfs and similar	1700	x3071
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x920
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1439
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x855
755D	PolandBall and Polygon data structures	2000	x2513
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12527
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x11332
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x18131
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x502
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2463
754C	Vladik and chat brute force, constructive algorithms, dp, implementation, strings	2200	x942
754B	Ilya and tic-tac-toe game brute force, implementation	1100	x7256
754A	Lesha and array splitting constructive algorithms, greedy, implementation	1200	x8717
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x305
753B	Interactive Bulls and Cows (Easy) brute force, constructive algorithms, implementation	1600	x1209
753A	Santa Claus and Candies dp, greedy, math	1000	x9093
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x192
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x450
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x488
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1596
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3084
750C	New Year and Rating binary search, greedy, math	1600	x6566
750B	New Year and North Pole geometry, implementation	1300	x9488
750A	New Year and Hurry binary search, brute force, implementation, math	800	x76392
749E	Inversions After Shuffle data structures, probabilities	2400	x1088
749D	Leaving Auction binary search, data structures	2000	x2572
749C	Voting greedy, implementation, two pointers	1500	x5990
749B	Parallelogram is Back brute force, constructive algorithms, geometry	1200	x8503
749A	Bachgold Problem greedy, implementation, math, number theory	800	x49833
748F	Santa Clauses and a Soccer Championship constructive algorithms, dfs and similar, graphs, trees	2300	x654
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1504
748D	Santa Claus and a Palindrome constructive algorithms, data structures, greedy	2100	x1876
748C	Santa Claus and Robot constructive algorithms, math	1400	x4627
748B	Santa Claus and Keyboard Check implementation, strings	1500	x5374
748A	Santa Claus and a Place in a Class implementation, math	800	x9013
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2500	x422
747E	Comments dfs and similar, expression parsing, implementation, strings	1700	x1971
747D	Winter Is Coming dp, greedy, sortings	1800	x3267
747C	Servers implementation	1300	x4661
747B	Mammoth's Genome Decoding implementation, strings	900	x8907
747A	Display Size brute force, math	800	x10280
746G	New Roads constructive algorithms, graphs, trees	2100	x1530
746F	Music in Car data structures, greedy, two pointers	2200	x776
746E	Numbers Exchange greedy, implementation, math	1900	x1741
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x5118
746C	Tram constructive algorithms, implementation, math	1600	x3732
746B	Decoding implementation, strings	900	x28223
746A	Compote implementation, math	800	x21558
745B	Hongcow Solves A Puzzle implementation	1400	x3746
745A	Hongcow Learns the Cyclic Shift implementation, strings	900	x10478
744E	Hongcow Masters the Cyclic Shift strings, two pointers	3200	x143
744D	Hongcow Draws a Circle geometry	3200	x125
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1159
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1781
744A	Hongcow Builds A Nation dfs and similar, graphs	1500	x8441
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1506
743D	Chloe and pleasant prizes dfs and similar, dp, graphs, trees	1800	x4372
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x12356
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14802
743A	Vladik and flights constructive algorithms, greedy, implementation	1200	x11175
742B	Arpa’s obvious problem and Mehrdad’s terrible solution brute force, math, number theory	1500	x9301
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x43001
741E	Arpa’s abnormal DNA and Mehrdad’s deep interest data structures, string suffix structures	3400	x179
741D	Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths data structures, dfs and similar, trees	2900	x2788
741C	Arpa’s overnight party and Mehrdad’s silent entering constructive algorithms, dfs and similar, graphs	2600	x2610
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5275
741A	Arpa's loud Owf and Mehrdad's evil plan dfs and similar, math	1600	x5437
740B	Alyona and flowers constructive algorithms	1200	x8331
740A	Alyona and copybooks brute force, implementation	1300	x8911
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2197
739D	Recover a functional graph graph matchings	3400	x186
739C	Alyona and towers data structures	2500	x1524
739B	Alyona and a tree binary search, data structures, dfs and similar, graphs, trees	1900	x4630
739A	Alyona and mex constructive algorithms, greedy	1700	x7883
737F	Dirty plates constructive algorithms, math	3300	x70
737E	Tanya is 5! graph matchings, graphs, greedy, schedules	3300	x122
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x187
736D	Permutations math, matrices	2800	x464
735E	Ostap and Tree dp, trees	2500	x875
735D	Taxes math, number theory	1600	x13593
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7533
735B	Urbanization greedy, number theory, sortings	1100	x8399