Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x6046
1118E	Yet Another Ball Problem constructive algorithms, implementation	1700	x4244
1118D2	Coffee and Coursework (Hard Version) binary search, greedy	1700	x6379
1118D1	Coffee and Coursework (Easy version) brute force, greedy	1700	x5729
1118C	Palindromic Matrix constructive algorithms, implementation	1700	x5814
1115U3	Block unitary *special problem	1700	x198
1115U2	Chessboard unitary *special problem	1600	x236
1115U1	Anti-diagonal unitary *special problem	1500	x258
1115G3	Palindrome checker oracle *special problem	1600	x233
1115G2	OR oracle *special problem	1600	x313
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7454
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x9028
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6350
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6315
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x9481
1110B	Tape greedy, sortings	1400	x11984
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4383
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8572
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4583
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x15438
1107D	Compression dp, implementation, math, number theory	1800	x3744
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x15168
1106B	Lunar New Year and Food Ordering data structures, implementation	1500	x6785
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10504
1103A	Grid game constructive algorithms, implementation	1400	x9874
1102E	Monotonic Renumeration combinatorics, sortings	1700	x6126
1102D	Balanced Ternary String greedy, strings	1500	x8071
1102B	Array K-Coloring greedy, sortings	1400	x10488
1101E	Polycarp's New Job implementation	1500	x7964
1101C	Division and Union sortings	1500	x8341
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8886
1097C	Yuhao and a Parenthesis greedy, implementation	1400	x8478
1096D	Easy Problem dp	1800	x8249
1096C	Polygon for the Angle brute force, geometry	1600	x6866
1095D	Circular Dance implementation	1600	x7634
1095C	Powers Of Two bitmasks, greedy	1400	x17251
1093D	Beautiful Graph dfs and similar, graphs	1700	x9502
1092C	Prefixes and Suffixes strings	1700	x5969
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6859
1091C	New Year and the Sphere Transmission math, number theory	1400	x10115
1090D	Similar Arrays constructive algorithms	1800	x2156
1089G	Guest Student math	1500	x3006
1089E	Easy Chess constructive algorithms	1700	x2043
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x8113
1085D	Minimum Diameter Tree constructive algorithms, implementation, trees	1700	x5471
1085C	Connect Three implementation, math	1600	x5468
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x8414
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x5529
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x3839
1082C	Multi-Subject Competition greedy, sortings	1600	x5808
1082B	Vova and Trophies greedy	1600	x7637
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4200
1081C	Colorful Bricks combinatorics, dp, math	1500	x7397
1081B	Farewell Party constructive algorithms, implementation	1500	x4480
1080C	Masha and two friends implementation	1500	x4075
1077E	Thematic Contests greedy, sortings	1800	x4762
1077D	Cutting Out binary search, sortings	1600	x9123
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x5327
1073D	Berland Fair binary search, brute force, data structures, greedy	1700	x6450
1073C	Vasya and Robot binary search, two pointers	1800	x4862
1070H	BerOS File Suggestion brute force, implementation	1500	x3684
1070F	Debate greedy	1500	x3686
1068C	Colored Rooks constructive algorithms, graphs	1700	x3204
1068A	Birthday math	1400	x6880
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2729
1066E	Binary Numbers AND Sum data structures, implementation, math	1700	x6208
1066D	Boxes Packing binary search, implementation	1800	x5554
1066C	Books Queries implementation	1400	x9763
1066B	Heaters greedy, two pointers	1500	x8430
1065C	Make It Equal greedy	1600	x7927
1063B	Labyrinth graphs, shortest paths	1800	x7739
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x3982
1062C	Banh-mi greedy, implementation, math	1600	x5525
1062B	Math greedy, math, number theory	1500	x8973
1061C	Multiplicity data structures, dp, implementation, math, number theory	1700	x9126
1061B	Views Matter greedy, implementation, sortings	1400	x7352
1060C	Maximum Subrectangle binary search, implementation, two pointers	1600	x4941
1059C	Sequence Transformation constructive algorithms, math	1600	x7219
1057B	DDoS *special problem, brute force	1400	x1847
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x6031
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2415
1056B	Divide Candies math, number theory	1600	x4252
1054C	Candies Distribution constructive algorithms, implementation	1500	x4318
1051D	Bicolorings bitmasks, dp	1700	x7495
1051C	Vasya and Multisets brute force, dp, greedy, implementation, math	1500	x9351
1046F	Splitting money implementation	1400	x2811
1046C	Space Formula greedy	1400	x3139
1045I	Palindrome Pairs hashing, strings	1600	x4579
1044A	The Tower is Going Home binary search, two pointers	1700	x2914
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x4478
1043C	Smallest Word constructive algorithms, greedy, implementation	1500	x6952
1042D	Petya and Array data structures, divide and conquer, two pointers	1800	x6320
1042C	Array Product constructive algorithms, greedy, math	1700	x4755
1041D	Glider binary search, data structures, two pointers	1700	x6024
1041C	Coffee Break binary search, data structures, greedy, two pointers	1600	x9553
1038D	Slime dp, greedy, implementation	1800	x8461
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x15217
1036D	Vasya and Arrays greedy, two pointers	1600	x9421
1036B	Diagonal Walking v.2 math	1600	x5729
1034A	Enlarge GCD number theory	1800	x8889