Problemset - Codeforces

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Codeforces Round 953 (Div. 2)
33:53:55
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dfs and similar

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Problems

#	Name
1045C	Hyperspace Highways dfs and similar, graphs, trees	2300	x652
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1552
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1246
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2200	x1314
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x960
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x14029
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x365
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x589
1033A	King Escape dfs and similar, graphs, implementation	1000	x13070
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1513
1027D	Mouse Hunt dfs and similar, graphs	1700	x7102
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x865
1020B	Badge brute force, dfs and similar, graphs	1000	x20384
1016F	Road Projects dfs and similar, dp, trees	2600	x783
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3665
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x2357
1006E	Military Problem dfs and similar, graphs, trees	1600	x9521
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1628
1000E	We Need More Bosses dfs and similar, graphs, trees	2100	x4137
999E	Reachability from the Capital dfs and similar, graphs, greedy	2000	x6410
990F	Flow Control dfs and similar, dp, greedy, trees	2400	x874
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x2201
982F	The Meeting Place Cannot Be Changed dfs and similar, graphs	2700	x187
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x10968
979C	Kuro and Walking Route dfs and similar, trees	1600	x6106
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x19536
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x17772
963B	Destruction of a Tree constructive algorithms, dfs and similar, dp, greedy, trees	2000	x2714
962F	Simple Cycles Edges dfs and similar, graphs, trees	2400	x1243
960E	Alternating Tree combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees	2300	x1836
958B2	Maximum Control (medium) data structures, dfs and similar, graphs, greedy, trees	2200	x620
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x6345
949C	Data Center Maintenance dfs and similar, graphs	1900	x1989
948A	Protect Sheep brute force, dfs and similar, graphs, implementation	900	x13466
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x7170
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x185
936B	Sleepy Game dfs and similar, dp, games, graphs	2100	x3082
935E	Fafa and Ancient Mathematics dfs and similar, dp, trees	2300	x869
932B	Recursive Queries binary search, data structures, dfs and similar	1300	x7832
930A	Peculiar apple-tree dfs and similar, graphs, trees	1500	x6860
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x6008
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x9035
919D	Substring dfs and similar, dp, graphs	1700	x9481
917B	MADMAX dfs and similar, dp, games, graphs	1700	x3496
915D	Almost Acyclic Graph dfs and similar, graphs	2200	x3300
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x1499
911F	Tree Destruction constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x1575
910A	The Way to Home dfs and similar, dp, greedy, implementation	800	x11461
909E	Coprocessor dfs and similar, dp, graphs, greedy	1900	x1999
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x10517
901D	Weighting a Tree constructive algorithms, dfs and similar, graphs	2700	x436
901C	Bipartite Segments binary search, data structures, dfs and similar, dsu, graphs, two pointers	2300	x1135
896A	Nephren gives a riddle binary search, dfs and similar	1700	x3342
893C	Rumor dfs and similar, graphs, greedy	1300	x21979
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x171
884C	Bertown Subway dfs and similar, greedy, math	1500	x4631
883G	Orientation of Edges dfs and similar, graphs	1900	x1389
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x4024
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x1977
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2300	x988
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x237
864F	Cities Excursions dfs and similar, graphs, trees	2700	x581
862B	Mahmoud and Ehab and the bipartiteness dfs and similar, graphs, trees	1300	x16265
860E	Arkady and a Nobody-men data structures, dfs and similar, trees	2700	x426
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1698
858F	Wizard's Tour constructive algorithms, dfs and similar, graphs	2300	x1492
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x205
852I	Dating brute force, dfs and similar, graphs, trees	2300	x559
847L	Berland SU Computer Network constructive algorithms, dfs and similar, graphs, hashing, trees	2400	x316
847I	Noise Level dfs and similar, implementation, math	1900	x1506
846E	Chemistry in Berland dfs and similar, greedy, trees	2300	x859
845G	Shortest Path Problem? dfs and similar, graphs, math	2300	x1512
843C	Upgrading Tree constructive algorithms, dfs and similar, graphs, math, trees	2600	x351
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5571
842E	Nikita and game binary search, dfs and similar, divide and conquer, graphs, trees	2800	x400
842C	Ilya And The Tree dfs and similar, graphs, math, number theory, trees	2000	x3429
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2299
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x16082
838B	Diverging Directions data structures, dfs and similar, trees	2100	x705
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x1016
832D	Misha, Grisha and Underground dfs and similar, graphs, trees	1900	x3637
827D	Best Edge Weight data structures, dfs and similar, graphs, trees	2700	x1075
825G	Tree Queries dfs and similar, graphs, trees	2500	x1150
825E	Minimal Labels data structures, dfs and similar, graphs, greedy	2300	x3068
822F	Madness constructive algorithms, dfs and similar, trees	2500	x289
821D	Okabe and City dfs and similar, graphs, shortest paths	2200	x1355
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2126
813C	The Tag Game dfs and similar, graphs	1700	x5735
812D	Sagheer and Kindergarten dfs and similar, graphs, implementation, trees	2700	x328
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1584
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x138
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1260
804C	Ice cream coloring constructive algorithms, dfs and similar, greedy	2200	x1661
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x286
802J	Send the Fool Further! (easy) dfs and similar, graphs, trees	1400	x4345
797D	Broken BST data structures, dfs and similar	2100	x1761
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5252
794D	Labelling Cities dfs and similar, graphs, hashing	2400	x767
793E	Problem of offices constructive algorithms, dfs and similar, dp, trees	2900	x245
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4362