Problemset - Codeforces

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Problems

#	Name
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3392
1131F	Asya And Kittens constructive algorithms, dsu	1700	x6711
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x3320
1130C	Connect brute force, dfs and similar, dsu	1400	x8656
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2500	x1422
1108F	MST Unification binary search, dsu, graphs, greedy	2100	x2967
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x1072
1095F	Make It Connected dsu, graphs, greedy	1900	x6249
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4150
1055B	Alice and Hairdresser dsu, implementation	1300	x5026
1051G	Distinctification data structures, dsu, greedy	2900	x398
1044D	Deduction Queries data structures, dsu	2400	x1017
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1317
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2200	x1364
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1563
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x889
1012E	Cycle sort dsu, math	3100	x331
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x4038
1009F	Dominant Indices data structures, dsu, trees	2300	x5837
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x1882
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x2467
982D	Shark brute force, data structures, dsu, trees	1900	x2340
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1846
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x20915
962G	Visible Black Areas data structures, dsu, geometry, trees	2800	x183
959B	Mahmoud and Ehab and the message dsu, greedy, implementation	1200	x9676
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x7361
938G	Shortest Path Queries bitmasks, data structures, dsu, graphs	2900	x918
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x192
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x6916
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x6469
915F	Imbalance Value of a Tree data structures, dsu, graphs, trees	2400	x2531
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x10900
901C	Bipartite Segments binary search, data structures, dfs and similar, dsu, graphs, two pointers	2300	x1185
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x3098
896E	Welcome home, Chtholly data structures, dsu	3100	x2160
891C	Envy data structures, dsu, graphs	2300	x2418
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x5482
884E	Binary Matrix dsu	2500	x696
875F	Royal Questions dsu, graphs, greedy	2500	x1366
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x5213
873F	Forbidden Indices dsu, string suffix structures, strings	2400	x1412
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2300	x1237
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1868
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5682
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	1900	x4838
813F	Bipartite Checking data structures, dsu, graphs	2500	x1371
811E	Vladik and Entertaining Flags data structures, dsu, graphs	2600	x877
788B	Weird journey combinatorics, constructive algorithms, dfs and similar, dsu, graphs	2100	x2598
778C	Peterson Polyglot brute force, dfs and similar, dsu, hashing, strings, trees	2500	x924
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x5133
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x15481
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x3429
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2486
763E	Timofey and our friends animals data structures, divide and conquer, dsu	2900	x505
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10636
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12572
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x194
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5289
733F	Drivers Dissatisfaction data structures, dsu, graphs, trees	2200	x1127
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x7038
723F	st-Spanning Tree dsu, graphs, greedy, implementation	2300	x1487
723D	Lakes in Berland dfs and similar, dsu, graphs, greedy, implementation	1600	x6975
722C	Destroying Array data structures, dsu	1600	x9516
715C	Digit Tree dfs and similar, divide and conquer, dsu, trees	2700	x2155
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x5757
696E	...Wait for it... data structures, dsu, trees	3000	x559
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5558
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x962
679C	Bear and Square Grid dfs and similar, dsu, implementation	2400	x1157
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3241
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1810
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7491
653E	Bear and Forgotten Tree 2 dfs and similar, dsu, graphs, trees	2400	x1543
652E	Pursuit For Artifacts dfs and similar, dsu, graphs, trees	2300	x2226
650E	Clockwork Bomb data structures, dfs and similar, dsu, greedy, trees	3200	x603
650C	Table Compression dfs and similar, dp, dsu, graphs, greedy	2200	x2027
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x239
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x7984
603E	Pastoral Oddities data structures, divide and conquer, dsu, math, trees	3000	x1306
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2589
601D	Acyclic Organic Compounds data structures, dfs and similar, dsu, hashing, strings, trees	2400	x1159
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x14256
571D	Campus binary search, data structures, dsu, trees	3100	x683
566D	Restructuring Company data structures, dsu	1900	x3296
553C	Love Triangles dfs and similar, dsu, graphs	2200	x1816
547B	Mike and Feet binary search, data structures, dp, dsu	1900	x8833
516D	Drazil and Morning Exercise dfs and similar, dp, dsu, trees, two pointers	2800	x1324
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7465
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2182
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x13164
501B	Misha and Changing Handles data structures, dsu, strings	1100	x16603
500E	New Year Domino data structures, dp, dsu	2300	x1447
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8908
490B	Queue dsu, implementation	1500	x6017
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x5450
471E	MUH and Lots and Lots of Segments data structures, dsu	2700	x82
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x4255
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2246
461D	Appleman and Complicated Task dsu, math	2800	x366