Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
1157D	N Problems During K Days constructive algorithms, greedy, math	1900	x3752
1157C2	Increasing Subsequence (hard version) greedy	1700	x7994
1157C1	Increasing Subsequence (easy version) greedy	1300	x12622
1157B	Long Number greedy	1300	x14694
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6222
1156A	Inscribed Figures geometry	1400	x8205
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6919
1155C	Alarm Clocks Everywhere math, number theory	1300	x9230
1154E	Two Teams data structures, implementation, sortings	1800	x6267
1154D	Walking Robot greedy	1500	x9952
1154C	Gourmet Cat implementation, math	1400	x10392
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1900	x4989
1153C	Serval and Parenthesis Sequence greedy, strings	1700	x7399
1152C	Neko does Maths brute force, math, number theory	1800	x6667
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8927
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8417
1151C	Problem for Nazar constructive algorithms, math	1800	x5343
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x11174
1148D	Dirty Deeds Done Dirt Cheap greedy, sortings	1800	x4972
1148C	Crazy Diamond constructive algorithms, sortings	1700	x5297
1148B	Born This Way binary search, brute force, two pointers	1600	x7384
1147B	Chladni Figure brute force, strings	1900	x2878
1147A	Hide and Seek graphs	1500	x5245
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3689
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x11618
1144E	Median String bitmasks, math, number theory, strings	1900	x4154
1144D	Equalize Them All constructive algorithms, greedy	1400	x10267
1143C	Queen dfs and similar, trees	1400	x12399
1142A	The Beatles brute force, math	1700	x3422
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x2273
1141F2	Same Sum Blocks (Hard) data structures, greedy	1900	x4194
1141F1	Same Sum Blocks (Easy) greedy	1900	x3856
1141E	Superhero Battle math	1700	x6739
1141D	Colored Boots greedy, implementation	1500	x8534
1141C	Polycarp Restores Permutation math	1500	x11451
1140C	Playlist brute force, data structures, sortings	1600	x9557
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12618
1138B	Circus brute force, greedy, math, strings	1800	x4024
1137B	Camp Schedule greedy, hashing, strings	1600	x6141
1137A	Skyscrapers implementation, sortings	1600	x4468
1136D	Nastya Is Buying Lunch greedy	1800	x3813
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7712
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3343
1133F1	Spanning Tree with Maximum Degree graphs	1600	x7804
1133E	K Balanced Teams dp, sortings, two pointers	1800	x5480
1133D	Zero Quantity Maximization hashing, math, number theory	1500	x11809
1132C	Painting the Fence brute force	1700	x5434
1131F	Asya And Kittens constructive algorithms, dsu	1700	x6671
1131B	Draw! greedy, implementation	1400	x9722
1130C	Connect brute force, dfs and similar, dsu	1400	x8588
1129A2	Toy Train brute force, greedy	1800	x4099
1129A1	Toy Train (Simplified) brute force, greedy	1700	x3821
1121C	System Testing implementation	1600	x1995
1120A	Diana and Liana greedy, implementation, two pointers	1900	x1639
1119E	Pavel and Triangles brute force, dp, fft, greedy, ternary search	1900	x5009
1119D	Frets On Fire binary search, sortings	1800	x4830
1119C	Ramesses and Corner Inversion constructive algorithms, greedy, implementation, math	1500	x6830
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x11048
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x5935
1118E	Yet Another Ball Problem constructive algorithms, implementation	1700	x4149
1118D2	Coffee and Coursework (Hard Version) binary search, greedy	1700	x6287
1118D1	Coffee and Coursework (Easy version) brute force, greedy	1700	x5685
1118C	Palindromic Matrix constructive algorithms, implementation	1700	x5776
1117C	Magic Ship binary search	1900	x7034
1115U3	Block unitary *special problem	1700	x197
1115U2	Chessboard unitary *special problem	1600	x234
1115U1	Anti-diagonal unitary *special problem	1500	x256
1115G3	Palindrome checker oracle *special problem	1600	x231
1115G2	OR oracle *special problem	1600	x312
1114D	Flood Fill dp	1900	x6792
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7397
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x8972
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7739
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6250
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6284
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x9377
1110B	Tape greedy, sortings	1400	x11574
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4358
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8502
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4537
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x15165
1108C	Nice Garland brute force, greedy, math	1300	x11966
1107D	Compression dp, implementation, math, number theory	1800	x3726
1107C	Brutality greedy, sortings, two pointers	1300	x9952
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14717
1106B	Lunar New Year and Food Ordering data structures, implementation	1500	x6752
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4106
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10351
1103A	Grid game constructive algorithms, implementation	1400	x9769
1102E	Monotonic Renumeration combinatorics, sortings	1700	x5955
1102D	Balanced Ternary String greedy, strings	1500	x7986
1102B	Array K-Coloring greedy, sortings	1400	x10398
1101E	Polycarp's New Job implementation	1500	x7814
1101C	Division and Union sortings	1500	x8032
1101B	Accordion greedy, implementation	1300	x10490
1100B	Build a Contest data structures, implementation	1300	x11153
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8759
1097C	Yuhao and a Parenthesis greedy, implementation	1400	x8445
1096D	Easy Problem dp	1800	x8071
1096C	Polygon for the Angle brute force, geometry	1600	x6811