Problemset - Codeforces

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Educational Codeforces Round 175 (Rated for Div. 2)
42:25:32
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Problems

#	Name
1146F	Leaf Partition dp, trees	2500	x1212
1146E	Hot is Cold bitmasks, data structures, divide and conquer, implementation	2400	x948
1146D	Frog Jumping dfs and similar, math, number theory	2100	x1119
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3774
1146B	Hate "A" implementation, strings	1100	x8769
1146A	Love "A" implementation, strings	800	x22370
1145G	AI Takeover interactive		x177
1145F	Neat Words		x520
1145E	Fourier Doodles		x433
1145D	Pigeon d'Or implementation		x1169
1145C	Mystery Circuit bitmasks, brute force		x811
1145B	Kanban Numbers brute force		x1467
1145A	Thanos Sort implementation		x8742
1144G	Two Merged Sequences dp, greedy	2400	x2090
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x12133
1144E	Median String bitmasks, math, number theory, strings	1900	x4235
1144D	Equalize Them All constructive algorithms, greedy	1400	x10478
1144C	Two Shuffled Sequences constructive algorithms, sortings	1000	x15678
1144B	Parity Alternated Deletions greedy, implementation, sortings	900	x17590
1144A	Diverse Strings implementation, strings	800	x19606
1143C	Queen dfs and similar, trees	1400	x13460
1143B	Nirvana brute force, math, number theory	1200	x10771
1143A	The Doors implementation	800	x13362
1142E	Pink Floyd graphs, interactive	3200	x543
1142D	Foreigner dp	2800	x547
1142C	U2 geometry	2400	x1415
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2000	x3202
1142A	The Beatles brute force, math	1700	x3486
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x2371
1141F2	Same Sum Blocks (Hard) data structures, greedy	1900	x4313
1141F1	Same Sum Blocks (Easy) greedy	1900	x3976
1141E	Superhero Battle math	1700	x6874
1141D	Colored Boots greedy, implementation	1500	x8676
1141C	Polycarp Restores Permutation math	1500	x11652
1141B	Maximal Continuous Rest implementation	900	x21767
1141A	Game 23 implementation, math	1000	x33443
1140G	Double Tree data structures, divide and conquer, shortest paths, trees	2700	x523
1140F	Extending Set of Points data structures, divide and conquer, dsu	2600	x1290
1140E	Palindrome-less Arrays combinatorics, divide and conquer, dp	2200	x1998
1140D	Minimum Triangulation dp, greedy, math	1200	x12743
1140C	Playlist brute force, data structures, sortings	1600	x9735
1140B	Good String implementation, strings	1200	x11436
1140A	Detective Book implementation	1000	x12422
1139F	Dish Shopping data structures, divide and conquer	2500	x448
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1902
1139D	Steps to One dp, math, number theory, probabilities	2300	x2435
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x13240
1139B	Chocolates greedy, implementation	1000	x17059
1139A	Even Substrings implementation, strings	800	x16953
1138B	Circus brute force, greedy, math, strings	1800	x4068
1138A	Sushi for Two binary search, greedy, implementation	900	x19229
1137F	Matches Are Not a Child's Play data structures, trees	3400	x476
1137E	Train Car Selection data structures, greedy	2700	x535
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1742
1137C	Museums Tour dp, graphs, implementation	2500	x1228
1137B	Camp Schedule greedy, hashing, strings	1600	x6289
1137A	Skyscrapers implementation, sortings	1600	x4537
1136E	Nastya Hasn't Written a Legend binary search, data structures	2200	x1097
1136D	Nastya Is Buying Lunch greedy	1800	x3883
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7817
1136B	Nastya Is Playing Computer Games constructive algorithms, math	1000	x11832
1136A	Nastya Is Reading a Book implementation	800	x16586
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3479
1133F1	Spanning Tree with Maximum Degree graphs	1600	x8054
1133E	K Balanced Teams dp, sortings, two pointers	1800	x5717
1133D	Zero Quantity Maximization hashing, math, number theory	1500	x12691
1133C	Balanced Team sortings, two pointers	1200	x24168
1133B	Preparation for International Women's Day math, number theory	1200	x13256
1133A	Middle of the Contest implementation	1000	x18140
1132G	Greedy Subsequences data structures, dp, trees	2400	x1081
1132F	Clear the String dp	2000	x8682
1132E	Knapsack dfs and similar, dp, greedy	2300	x1562
1132D	Stressful Training binary search, greedy	2300	x1996
1132C	Painting the Fence brute force	1700	x5484
1132B	Discounts greedy, sortings	900	x13216
1132A	Regular Bracket Sequence greedy, implementation	1100	x9706
1131G	Most Dangerous Shark data structures, dp, two pointers	2700	x461
1131F	Asya And Kittens constructive algorithms, dsu	1700	x6887
1131E	String Multiplication dp, greedy, strings	2300	x1163
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x3375
1131C	Birthday binary search, greedy, sortings	1200	x15058
1131B	Draw! greedy, implementation	1400	x9878
1131A	Sea Battle math	800	x12550
1130C	Connect brute force, dfs and similar, dsu	1400	x8799
1130B	Two Cakes greedy	1200	x7990
1130A	Be Positive implementation	800	x11779
1129E	Legendary Tree binary search, interactive, trees	3100	x471
1129D	Isolation data structures, dp	2900	x1125
1129C	Morse Code binary search, data structures, dp, hashing, sortings, string suffix structures, strings	2400	x940
1129B	Wrong Answer constructive algorithms	2000	x2239
1129A2	Toy Train brute force, greedy	1800	x4122
1129A1	Toy Train (Simplified) brute force, greedy	1700	x3843
1121C	System Testing implementation	1600	x2036
1121B	Mike and Children brute force, implementation	1200	x9355
1121A	Technogoblet of Fire implementation, sortings	1100	x7265
1120F	Secret Letters data structures, dp, greedy	3100	x263
1120E	The very same Munchhausen brute force	2600	x130
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2500	x1481
1120C	Compress String dp, strings	2100	x2135
1120B	Once in a casino constructive algorithms, greedy, implementation, math	2700	x437