Problemset - Codeforces

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Problems

#	Name
1090I	Minimal Product	2000	x1071
1090B	LaTeX Expert	1900	x1432
1089F	Fractions math	1900	x1961
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2873
1083B	The Fair Nut and Strings greedy, strings	2000	x1961
1082E	Increasing Frequency binary search, dp, greedy	2000	x4666
1081E	Missing Numbers binary search, constructive algorithms, greedy, math, number theory	1900	x2601
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1561
1077F2	Pictures with Kittens (hard version) data structures, dp	2100	x3378
1077F1	Pictures with Kittens (easy version) dp	1900	x4481
1076E	Vasya and a Tree data structures, trees	1900	x3784
1070E	Getting Deals Done binary search, data structures	2100	x1388
1070C	Cloud Computing data structures, greedy	2000	x2061
1067A	Array Without Local Maximums dp	1900	x2898
1066F	Yet another 2D Walking dp	2100	x2073
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x3070
1061D	TV Shows data structures, greedy, implementation, sortings	2000	x2377
1060E	Sergey and Subway dfs and similar, dp, trees	2000	x3189
1060D	Social Circles greedy, math	1900	x3645
1057C	Tanya and Colored Candies *special problem, dp	2000	x939
1056E	Check Transcription brute force, data structures, hashing, strings	2100	x2283
1055C	Lucky Days math, number theory	1900	x1917
1054D	Changing Array greedy, implementation	1900	x2259
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1355
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1578
1043E	Train Hard, Win Easy constructive algorithms, greedy, math, sortings	1900	x2780
1041E	Tree Reconstruction constructive algorithms, data structures, graphs, greedy	1900	x3604
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2377
1036C	Classy Numbers combinatorics, dp	1900	x9814
1033D	Divisors interactive, math, number theory	2000	x2405
1032E	The Unbearable Lightness of Weights dp, math	2100	x1692
1032D	Barcelonian Distance geometry, implementation	1900	x2841
1031D	Minimum path greedy	1900	x2818
1030E	Vasya and Good Sequences bitmasks, dp	2000	x3112
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2587
1029E	Tree with Small Distances dp, graphs, greedy	2100	x2956
1029D	Concatenated Multiples implementation, math	1900	x3893
1028D	Order book combinatorics, data structures, greedy	2100	x1747
1027E	Inverse Coloring combinatorics, dp, math	2100	x2141
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3672
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x2039
1019B	The hat binary search, interactive	2000	x1961
1017D	The Wu bitmasks, brute force, data structures	1900	x3543
1015E2	Stars Drawing (Hard Edition) binary search, dp, greedy	1900	x3630
1012C	Hills dp	1900	x3511
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x4038
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x2388
1009E	Intercity Travelling combinatorics, math, probabilities	2000	x3013
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x5437
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1760
1003E	Tree Constructing constructive algorithms, graphs	2100	x2723
1002E2	Another array reconstruction algorithm	1900	x203
1002A4	Generate W state	1900	x267
1000E	We Need More Bosses dfs and similar, graphs, trees	2100	x4756
1000D	Yet Another Problem On a Subsequence combinatorics, dp	1900	x4257
999F	Cards and Joy dp	2000	x2711
999E	Reachability from the Capital dfs and similar, graphs, greedy	2000	x6730
999D	Equalize the Remainders data structures, greedy, implementation	1900	x4397
997B	Roman Digits brute force, combinatorics, dp, greedy, math	2000	x2985
995A	Tesla constructive algorithms, implementation	2100	x1701
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1705
993B	Open Communication bitmasks, brute force	1900	x1956
992D	Nastya and a Game brute force, implementation, math	2100	x1655
990E	Post Lamps brute force, greedy	2100	x2029
988F	Rain and Umbrellas dp	2100	x2338
988E	Divisibility by 25 brute force, greedy	2100	x3991
985E	Pencils and Boxes binary search, data structures, dp, greedy, two pointers	2100	x3692
985D	Sand Fortress binary search, constructive algorithms, math	2100	x2568
982D	Shark brute force, data structures, dsu, trees	1900	x2340
981D	Bookshelves bitmasks, dp, greedy	1900	x3273
980D	Perfect Groups dp, math, number theory	2100	x2726
976E	Well played! greedy, sortings	2100	x2408
975D	Ghosts geometry, math	2000	x2224
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x3116
965C	Greedy Arkady math	2000	x2116
963B	Destruction of a Tree constructive algorithms, dfs and similar, dp, greedy, trees	2000	x2846
961E	Tufurama data structures	1900	x3678
961D	Pair Of Lines geometry	2000	x4329
960F	Pathwalks data structures, dp, graphs	2100	x2992
960D	Full Binary Tree Queries brute force, implementation, trees	2100	x1885
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x3444
959D	Mahmoud and Ehab and another array construction task constructive algorithms, greedy, math, number theory	1900	x3101
958C2	Encryption (medium) dp	2000	x1264
958A2	Death Stars (medium) hashing, strings	2000	x921
955C	Sad powers binary search, math, number theory	2100	x2717
954G	Castle Defense binary search, data structures, greedy, two pointers	2000	x2167
954F	Runner's Problem dp, matrices, sortings	2100	x1219
954E	Water Taps binary search, greedy, sortings	2000	x1921
952E	Cheese Board	2000	x642
952B	A Map of the Cat brute force, interactive	1900	x2052
949C	Data Center Maintenance dfs and similar, graphs	1900	x2081
940E	Cashback data structures, dp, greedy, math	2000	x3788
938D	Buy a Ticket data structures, graphs, shortest paths	2000	x5767
936B	Sleepy Game dfs and similar, dp, games, graphs	2100	x3274
935D	Fafa and Ancient Alphabet math, probabilities	1900	x2641
933B	A Determined Cleanup math	2000	x1924
930C	Teodor is not a liar! data structures, dp	1900	x2135
928D	Autocompletion *special problem, strings, trees	1900	x813
928C	Dependency management *special problem, graphs, implementation	1900	x888
926J	Segments data structures	2100	x392