Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
10:57:10
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Problems

#	Name
786E	ALT data structures, flows, graphs, trees	3200	x629
786D	Rap God data structures, dfs and similar, hashing, strings, trees	3400	x142
780C	Andryusha and Colored Balloons dfs and similar, graphs, greedy, trees	1600	x9080
778C	Peterson Polyglot brute force, dfs and similar, dsu, hashing, strings, trees	2500	x884
776F	Sherlock's bet to Moriarty constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees	2800	x438
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x137
771C	Bear and Tree Jumps dfs and similar, dp, trees	2100	x3112
767C	Garland dfs and similar, graphs, greedy, trees	2000	x4125
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2983
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1275
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x551
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10509
762F	Tree nesting combinatorics, graphs, trees	2800	x375
761E	Dasha and Puzzle constructive algorithms, dfs and similar, graphs, greedy, trees	2000	x2099
758E	Broken Tree dfs and similar, dp, graphs, greedy, trees	2600	x478
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x500
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12303
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x496
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x482
748F	Santa Clauses and a Soccer Championship constructive algorithms, dfs and similar, graphs, trees	2300	x646
746G	New Roads constructive algorithms, graphs, trees	2100	x1508
743D	Chloe and pleasant prizes dfs and similar, dp, graphs, trees	1800	x4301
741D	Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths data structures, dfs and similar, trees	2900	x2708
739B	Alyona and a tree binary search, data structures, dfs and similar, graphs, trees	1900	x4577
735E	Ostap and Tree dp, trees	2500	x863
734E	Anton and Tree dfs and similar, dp, trees	2100	x4143
733F	Drivers Dissatisfaction data structures, dsu, graphs, trees	2200	x1109
724G	Xor-matic Number of the Graph bitmasks, graphs, math, number theory, trees	2600	x1051
724F	Uniformly Branched Trees combinatorics, dp, trees	2700	x401
722D	Generating Sets binary search, data structures, dfs and similar, greedy, strings, trees	1900	x3151
718D	Andrew and Chemistry dp, hashing, trees	2900	x394
715C	Digit Tree dfs and similar, divide and conquer, dsu, trees	2700	x2095
708C	Centroids data structures, dfs and similar, dp, graphs, greedy, trees	2300	x3259
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x9972
704E	Iron Man data structures, geometry, trees	3300	x282
700B	Connecting Universities dfs and similar, dp, graphs, trees	1800	x3939
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x5704
696E	...Wait for it... data structures, dsu, trees	3000	x542
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3472
696A	Lorenzo Von Matterhorn brute force, data structures, implementation, trees	1500	x6049
690F3	Tree of Life (hard) trees	3200	x47
690F2	Tree of Life (medium) constructive algorithms, hashing, trees	2700	x81
690C3	Brain Network (hard) trees	2200	x902
690C2	Brain Network (medium) dfs and similar, graphs, trees	1500	x3707
685B	Kay and Snowflake data structures, dfs and similar, dp, trees	1900	x4037
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x7193
681D	Gifts by the List constructive algorithms, dfs and similar, graphs, trees	2000	x1760
675D	Tree Construction data structures, trees	1800	x3778
665E	Beautiful Subarrays data structures, divide and conquer, strings, trees	2100	x3111
653E	Bear and Forgotten Tree 2 dfs and similar, dsu, graphs, trees	2400	x1483
652E	Pursuit For Artifacts dfs and similar, dsu, graphs, trees	2300	x2114
650E	Clockwork Bomb data structures, dfs and similar, dsu, greedy, trees	3200	x598
643E	Bear and Destroying Subtrees dp, math, probabilities, trees	2700	x636
639F	Bear and Chemistry data structures, dfs and similar, graphs, trees	3300	x418
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6495
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1614
633F	The Chocolate Spree dfs and similar, dp, graphs, trees	2600	x963
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1074
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2300	x997
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x237
627D	Preorder Test binary search, dfs and similar, dp, graphs, greedy, trees	2600	x861
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x2060
620F	Xors on Segments data structures, strings, trees	2800	x733
620E	New Year Tree bitmasks, data structures, trees	2100	x5553
618D	Hamiltonian Spanning Tree dfs and similar, dp, graph matchings, greedy, trees	2200	x1711
615C	Running Track dp, greedy, strings, trees	2000	x2301
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2917
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x7694
607D	Power Tree data structures, trees	2600	x568
603E	Pastoral Oddities data structures, divide and conquer, dsu, math, trees	3000	x1231
601D	Acyclic Organic Compounds data structures, dfs and similar, dsu, hashing, strings, trees	2400	x1139
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x13764
599E	Sandy and Nuts bitmasks, dp, trees	2600	x638
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1238
592D	Super M dfs and similar, dp, graphs, trees	2200	x2618
587C	Duff in the Army data structures, trees	2200	x3879
581F	Zublicanes and Mumocrates dp, trees, two pointers	2400	x863
580C	Kefa and Park dfs and similar, graphs, trees	1500	x42559
578F	Mirror Box matrices, trees	3200	x547
576B	Invariance of Tree constructive algorithms, dfs and similar, greedy, trees	2100	x1803
575B	Bribes dfs and similar, graphs, trees	2200	x1063
573C	Bear and Drawing constructive algorithms, dfs and similar, trees	2300	x965
571D	Campus binary search, data structures, dsu, trees	3100	x678
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x7079
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x630
566C	Logistical Questions dfs and similar, divide and conquer, trees	3000	x752
566A	Matching Names dfs and similar, strings, trees	2300	x894
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1078
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2364
547E	Mike and Friends data structures, string suffix structures, strings, trees	2800	x2089
543D	Road Improvement dp, trees	2300	x2690
540E	Infinite Inversions binary search, data structures, implementation, sortings, trees	2100	x2105
538E	Demiurges Play Again dfs and similar, dp, math, trees	2200	x1530
536E	Tavas on the Path data structures, divide and conquer, trees	3100	x385
533B	Work Group dfs and similar, dp, graphs, strings, trees	2000	x2372
533A	Berland Miners binary search, data structures, dfs and similar, greedy, trees	3000	x387
526G	Spiders Evil Plan greedy, trees	3300	x724
522A	Reposts *special problem, dfs and similar, dp, graphs, trees	1200	x16227
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x6813
516D	Drazil and Morning Exercise dfs and similar, dp, dsu, trees, two pointers	2800	x1306