Problemset - Codeforces

Problems

#	Name
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1286
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2486
763E	Timofey and our friends animals data structures, divide and conquer, dsu	2900	x506
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x567
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x713
763B	Timofey and rectangles constructive algorithms, geometry	2100	x2826
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10638
762F	Tree nesting combinatorics, graphs, trees	2800	x381
762E	Radio stations binary search, data structures	2200	x1415
762D	Maximum path dp, greedy, implementation	2300	x1581
762C	Two strings binary search, hashing, strings, two pointers	2100	x2581
761F	Dasha and Photos brute force, data structures, dp, implementation	2600	x417
761E	Dasha and Puzzle constructive algorithms, dfs and similar, graphs, greedy, trees	2000	x2183
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x4068
758F	Geometrical Progression brute force, math, number theory	2400	x638
758E	Broken Tree dfs and similar, dp, graphs, greedy, trees	2600	x497
758D	Ability To Convert constructive algorithms, dp, greedy, math, strings	2000	x2735
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3885
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x507
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1172
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1340
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1408
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2373
756F	Long number expression parsing, math, number theory	3400	x99
756E	Byteland coins combinatorics, dp, math	3200	x182
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x1006
756C	Nikita and stack data structures	2200	x1353
756B	Travel Card binary search, dp	1600	x3654
756A	Pavel and barbecue constructive algorithms, dfs and similar	1700	x3072
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x923
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1440
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x855
755D	PolandBall and Polygon data structures	2000	x2517
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x503
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2465
754C	Vladik and chat brute force, constructive algorithms, dp, implementation, strings	2200	x943
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x308
753B	Interactive Bulls and Cows (Easy) brute force, constructive algorithms, implementation	1600	x1212
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x194
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x452
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	x1606
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	x6569
749E	Inversions After Shuffle data structures, probabilities	2400	x1113
749D	Leaving Auction binary search, data structures	2000	x2572
748F	Santa Clauses and a Soccer Championship constructive algorithms, dfs and similar, graphs, trees	2300	x661
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1506
748D	Santa Claus and a Palindrome constructive algorithms, data structures, greedy	2100	x1876
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2500	x422
747E	Comments dfs and similar, expression parsing, implementation, strings	1700	x1974
747D	Winter Is Coming dp, greedy, sortings	1800	x3282
746G	New Roads constructive algorithms, graphs, trees	2100	x1531
746F	Music in Car data structures, greedy, two pointers	2200	x776
746E	Numbers Exchange greedy, implementation, math	1900	x1742
746C	Tram constructive algorithms, implementation, math	1600	x3740
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	x1165
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1782
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1509
743D	Chloe and pleasant prizes dfs and similar, dp, graphs, trees	1800	x4379
741E	Arpa’s abnormal DNA and Mehrdad’s deep interest data structures, string suffix structures	3400	x180
741D	Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths data structures, dfs and similar, trees	2900	x2817
741C	Arpa’s overnight party and Mehrdad’s silent entering constructive algorithms, dfs and similar, graphs	2600	x2642
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5292
741A	Arpa's loud Owf and Mehrdad's evil plan dfs and similar, math	1600	x5442
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2203
739D	Recover a functional graph graph matchings	3400	x186
739C	Alyona and towers data structures	2500	x1527
739B	Alyona and a tree binary search, data structures, dfs and similar, graphs, trees	1900	x4670
739A	Alyona and mex constructive algorithms, greedy	1700	x7884
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	x876
735D	Taxes math, number theory	1600	x13619
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7546
734F	Anton and School bitmasks, constructive algorithms, implementation, math	2500	x1304
734E	Anton and Tree dfs and similar, dp, trees	2100	x4242
734D	Anton and Chess implementation	1700	x3744
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x5347
733F	Drivers Dissatisfaction data structures, dsu, graphs, trees	2200	x1127
733E	Sleep in Class constructive algorithms, data structures, math, two pointers	2400	x956
733D	Kostya the Sculptor data structures, hashing	1600	x4182
733C	Epidemic in Monstropolis constructive algorithms, dp, greedy, two pointers	1800	x3348
732F	Tourist Reform dfs and similar, graphs	2300	x2613
732E	Sockets greedy, sortings	2100	x1608
732D	Exams binary search, greedy, sortings	1700	x5572
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2879
731E	Funny Game dp, games	2200	x1723
731D	80-th Level Archeology brute force, data structures, greedy, sortings	2200	x1178
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x7039
730L	Expression Queries data structures	3200	x86
730K	Roads Orientation Problem graphs	3200	x104
730J	Bottles dp	1900	x3458
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x2105
730G	Car Repair Shop implementation	1600	x2185
730F	Ber Patio	3100	x91