Problemset - Codeforces

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Codeforces Round #648 (Div. 2)
13:48:35
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dfs and similar

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Problems

#	Name
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x1250
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x1541
1132E	Knapsack dfs and similar, dp, greedy	2300	x731
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2500	x415
1130C	Connect brute force, dfs and similar, dsu	1400	x5324
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x2108
1118F2	Tree Cutting (Hard Version) combinatorics, dfs and similar, dp, trees	2700	x235
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x3022
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x393
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x7447
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x448
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x2782
1100E	Andrew and Taxi binary search, dfs and similar, graphs	2200	x1443
1101D	GCD Counting data structures, dfs and similar, dp, number theory, trees	2000	x2302
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x570
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x532
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x5171
1092F	Tree with Maximum Cost dfs and similar, dp, trees	1900	x2391
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2000	x788
1093D	Beautiful Graph dfs and similar, graphs	1700	x4420
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x59
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x3217
1062F	Upgrading Cities dfs and similar, graphs	2900	x191
1062E	Company binary search, data structures, dfs and similar, greedy, trees	2300	x923
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x2762
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1149
1073F	Choosing Two Paths dfs and similar, dp, greedy, trees	2500	x266
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x1521
1057A	Bmail Computer Network *special problem, dfs and similar, trees	900	x2308
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x624
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x914
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x272
1033A	King Escape dfs and similar, graphs, implementation	1000	x6541
1060E	Sergey and Subway dfs and similar, dp, trees	2000	x1772
1045C	Hyperspace Highways dfs and similar, graphs, trees	2300	x404
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x802
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x223
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x692
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2200	x906
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x6758
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x738
1027D	Mouse Hunt dfs and similar, graphs	1700	x4278
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x492
1020B	Badge brute force, dfs and similar, graphs	1000	x11082
1016F	Road Projects dfs and similar, dp, trees	2600	x427
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x2521
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x1678
1006E	Military Problem dfs and similar, graphs, trees	1600	x4942
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x776
1000E	We Need More Bosses dfs and similar, graphs, trees	2100	x1509
999E	Reachability from the Capital dfs and similar, graphs, greedy	2000	x3264
990F	Flow Control dfs and similar, dp, greedy, trees	2400	x543
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x1281
982F	The Meeting Place Cannot Be Changed dfs and similar, graphs	2700	x120
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x5758
979C	Kuro and Walking Route dfs and similar, trees	1600	x3826
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x7836
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x9040
963B	Destruction of a Tree constructive algorithms, dfs and similar, dp, greedy, trees	2000	x1764
958B2	Maximum Control (medium) data structures, dfs and similar, graphs, greedy, trees	2200	x390
962F	Simple Cycles Edges dfs and similar, graphs, trees	2400	x492
960E	Alternating Tree combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees	2300	x888
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x3475
948A	Protect Sheep brute force, dfs and similar, graphs, implementation	900	x7643
949C	Data Center Maintenance dfs and similar, graphs	1900	x1346
930A	Peculiar apple-tree dfs and similar, graphs, trees	1500	x4548
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x115
936B	Sleepy Game dfs and similar, dp, games, graphs	2100	x2206
935E	Fafa and Ancient Mathematics dfs and similar, dp, trees	2300	x618
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x4222
932B	Recursive Queries binary search, data structures, dfs and similar	1300	x5489
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x2566
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x5423
919D	Substring dfs and similar, dp, graphs	1700	x4195
917B	MADMAX dfs and similar, dp, games, graphs	1700	x2495
915D	Almost Acyclic Graph dfs and similar, graphs	2200	x1862
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x806
911F	Tree Destruction constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x679
909E	Coprocessor dfs and similar, dp, graphs, greedy	1900	x1087
910A	The Way to Home dfs and similar, dp, greedy, implementation	800	x4731
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x6492
901D	Weighting a Tree constructive algorithms, dfs and similar, graphs	2700	x241
901C	Bipartite Segments binary search, data structures, dfs and similar, dsu, graphs, two pointers	2300	x785
896A	Nephren gives a riddle binary search, dfs and similar	1700	x2782
893C	Rumor dfs and similar, graphs, greedy	1300	x9012
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x78
884C	Bertown Subway dfs and similar, greedy, math	1500	x3215
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x2217
883G	Orientation of Edges dfs and similar, graphs	1900	x874
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x1391
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2300	x674
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x116
864F	Cities Excursions dfs and similar, graphs, trees	2700	x416
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x83
862B	Mahmoud and Ehab and the bipartiteness dfs and similar, graphs, trees	1300	x7243
847L	Berland SU Computer Network dfs and similar, hashing, trees	2400	x229
847I	Noise Level dfs and similar, implementation, math	1900	x1191
860E	Arkady and a Nobody-men data structures, dfs and similar, trees	2700	x271
858F	Wizard's Tour constructive algorithms, dfs and similar, graphs	2300	x699
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1108