Problemset - Codeforces

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Codeforces Round #615 (Div. 3)
16:39:55
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dfs and similar

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Problems

#	Name
1292C	Xenon's Attack on the Gangs combinatorics, dfs and similar, dp, greedy, trees	2300	x678
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1800	x2961
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	2000	x2024
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x604
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x545
1278E	Tests for problem D constructive algorithms, dfs and similar, divide and conquer, trees	2200	x884
1266F	Almost Same Distance dfs and similar, graphs	2900	x135
1280C	Jeremy Bearimy dfs and similar, graphs, greedy, trees	2000	x1041
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x2268
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	2000	x2145
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2500	x435
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x5052
1254E	Send Tree to Charlie combinatorics, dfs and similar, dsu, trees	3200	x80
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x4072
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x855
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x3122
1250N	Wires dfs and similar, graphs, greedy	2200	x973
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x7693
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x767
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	2900	x54
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2300	x837
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x1323
1218I	The Light Square 2-sat, dfs and similar, greedy	2200	x315
1218H	Function Composition dfs and similar	2700	x60
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x464
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x3873
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2000	x2725
1214H	Tiles Placement constructive algorithms, dfs and similar, trees	2700	x211
1214D	Treasure Island dfs and similar, dp, flows, hashing	1800	x3063
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2400	x1249
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x777
1207G	Indie Album data structures, dfs and similar, hashing, string suffix structures, strings, trees	2600	x331
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2500	x557
1192B	Dynamic Diameter *special problem, data structures, dfs and similar, divide and conquer, trees		x238
1178F1	Short Colorful Strip combinatorics, dfs and similar, dp	2200	x1052
1178G	The Awesomest Vertex data structures, dfs and similar	2900	x141
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2200	x580
1188A2	Add on a Tree: Revolution constructive algorithms, dfs and similar, implementation, trees	2500	x734
1187E	Tree Painting dfs and similar, dp, trees	2000	x2305
1186F	Vus the Cossack and a Graph dfs and similar, graphs, greedy, implementation	2300	x466
1182D	Complete Mirror constructive algorithms, dfs and similar, dp, hashing, implementation, trees	2500	x498
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x6717
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x3817
1176D	Recover it! dfs and similar, graphs, greedy, number theory, sortings	1900	x2638
1172B	Nauuo and Circle combinatorics, dfs and similar, dp, trees	2000	x2249
1175E	Minimal Segment Cover data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees	2200	x1293
1167C	News Distribution dfs and similar, dsu, graphs	1400	x6365
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2300	x970
1147D	Palindrome XOR dfs and similar, graphs	2600	x480
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2300	x1506
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x3503
1152E	Neko and Flashback constructive algorithms, dfs and similar, graphs	2500	x577
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x5606
1146D	Frog Jumping dfs and similar, math, number theory	2100	x781
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1800	x2675
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x3954
1143C	Queen dfs and similar, trees	1400	x4881
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2300	x1319
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x5471
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2500	x1118
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	2200	x1327
1132E	Knapsack dfs and similar, dp, greedy	2400	x654
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2400	x377
1130C	Connect brute force, dfs and similar, dsu	1400	x4869
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x1958
1118F2	Tree Cutting (Hard Version) combinatorics, dfs and similar, dp, trees	2700	x212
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x2624
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2800	x352
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x6350
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2800	x407
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x2588
1100E	Andrew and Taxi binary search, dfs and similar, graphs	2200	x1351
1101D	GCD Counting data structures, dfs and similar, dp, number theory, trees	2000	x2063
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2300	x528
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2300	x503
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x4589
1092F	Tree with Maximum Cost dfs and similar, dp, trees	2100	x1940
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2500	x688
1093D	Beautiful Graph dfs and similar, graphs	1600	x3759
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3500	x58
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x2823
1062F	Upgrading Cities dfs and similar, graphs	3000	x149
1062E	Company binary search, data structures, dfs and similar, greedy, trees	2300	x855
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x2475
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1066
1073F	Choosing Two Paths dfs and similar, dp, greedy, trees	2800	x243
1067B	Multihedgehog dfs and similar, graphs, shortest paths	2000	x1399
1057A	Bmail Computer Network *special problem, dfs and similar, trees	1700	x2043
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x554
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x856
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2700	x256
1033A	King Escape dfs and similar, graphs, implementation	1000	x5744
1060E	Sergey and Subway dfs and similar, dp, trees	2000	x1648
1045C	Hyperspace Highways dfs and similar, graphs, trees	2500	x385
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x757
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2800	x208
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x652
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2300	x837
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x5816
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x653

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