Problemset - Codeforces

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Problems

#	Name
1486D	Max Median binary search, data structures, dp	2100	x6720
1787C	Remove the Bracket dp, greedy, math	1600	x6708
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x6707
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6687
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x6685
1288D	Minimax Problem binary search, bitmasks, dp	2000	x6682
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6681
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6594
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6569
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x6566
219C	Color Stripe brute force, dp, greedy	1600	x6544
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6534
1114D	Flood Fill dp	1900	x6523
626B	Cards constructive algorithms, dp, math	1300	x6509
1363E	Tree Shuffling dfs and similar, dp, greedy, trees	2000	x6482
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6454
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6437
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6413
407B	Long Path dp, implementation	1600	x6409
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6402
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6390
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6350
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6324
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6303
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x6278
519D	A and B and Interesting Substrings data structures, dp, two pointers	1800	x6272
1283E	New Year Parties dp, greedy	1800	x6271
1861D	Sorting By Multiplication dp, greedy	1800	x6258
71C	Round Table Knights dp, math, number theory	1600	x6229
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x6195
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6191
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6181
1313C2	Skyscrapers (hard version) data structures, dp, greedy	1900	x6157
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6149
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6144
269B	Greenhouse Effect dp	1700	x6117
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6079
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6039
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6019
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x5996
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x5977
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x5961
1512F	Education brute force, dp, greedy, implementation	1900	x5933
331C1	The Great Julya Calendar dp	1100	x5932
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x5913
1433F	Zero Remainder Sum dp	2100	x5834
1700D	River Locks binary search, dp, greedy, math	1900	x5831
761C	Dasha and Password brute force, dp, implementation	1500	x5829
337D	Book of Evil dfs and similar, divide and conquer, dp, trees	2000	x5822
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5759
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x5756
1238D	AB-string binary search, combinatorics, dp, strings	1900	x5730
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5719
573B	Bear and Blocks binary search, data structures, dp, math	1600	x5697
106C	Buns dp	1700	x5692
721C	Journey dp, graphs	1800	x5671
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x5660
455B	A Lot of Games dfs and similar, dp, games, implementation, strings, trees	1900	x5649
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x5627
1268B	Domino for Young dp, greedy, math	2000	x5614
798C	Mike and gcd problem dp, greedy, number theory	1700	x5581
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x5557
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5534
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5528
1312E	Array Shrinking dp, greedy	2100	x5525
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5494
1427C	The Hard Work of Paparazzi dp	2000	x5474
478D	Red-Green Towers dp	2000	x5473
1015E1	Stars Drawing (Easy Edition) brute force, dp, greedy	1700	x5459
1499D	The Number of Pairs dp, math, number theory	2100	x5455
858C	Did you mean... dp, greedy, implementation	1500	x5443
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x5438
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5415
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5388
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5385
628D	Magic Numbers dp	2200	x5376
1033C	Permutation Game brute force, dp, games	1600	x5370
1294F	Three Paths on a Tree dfs and similar, dp, greedy, trees	2000	x5349
234C	Weather dp, implementation	1300	x5332
461B	Appleman and Tree dfs and similar, dp, trees	2000	x5324
1969C	Minimizing the Sum dp, implementation	1700	x5296
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5290
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x5287
859C	Pie Rules dp, games	1500	x5264
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5261
459E	Pashmak and Graph dp, sortings	1900	x5258
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5248
1494C	1D Sokoban binary search, dp, greedy, implementation, two pointers	1900	x5230
983B	XOR-pyramid dp	1800	x5226
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x5195
1133E	K Balanced Teams dp, sortings, two pointers	1800	x5194
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5187
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5180
540D	Bad Luck Island dp, probabilities	1900	x5161
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5139
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5129
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5129
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5124
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5121
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5111