Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
46:24:23
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dfs and similar

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Problems

#	Name
1303C	Perfect Keyboard dfs and similar, greedy, implementation	1600	x11864
1301F	Super Jaber dfs and similar, graphs, implementation, shortest paths	2600	x1092
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, graphs, math, trees	3000	x421
1297E	Modernization of Treeland *special problem, dfs and similar, trees		x200
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2100	x2685
1294F	Three Paths on a Tree dfs and similar, dp, greedy, trees	2000	x5380
1292C	Xenon's Attack on the Gangs combinatorics, dfs and similar, dp, greedy, trees	2300	x1878
1290C	Prefix Enlightenment dfs and similar, dsu, graphs	2400	x1538
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	1800	x4404
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7367
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x996
1280C	Jeremy Bearimy dfs and similar, graphs, greedy, trees	2000	x2485
1278E	Tests for problem D constructive algorithms, dfs and similar, divide and conquer, trees	2200	x1748
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x4680
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	1900	x5900
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x2049
1266F	Almost Same Distance dfs and similar, graphs	2900	x333
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x844
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x13369
1254E	Send Tree to Charlie combinatorics, dfs and similar, dsu, trees	3300	x262
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x8911
1250N	Wires dfs and similar, graphs, greedy	2000	x1554
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16435
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1568
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x7111
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x1911
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1828
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x170
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2687
1218I	The Light Square 2-sat, dfs and similar, greedy	2100	x573
1218H	Function Composition dfs and similar	2900	x110
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2100	x5088
1214H	Tiles Placement constructive algorithms, dfs and similar, trees	2800	x378
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x5091
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2100	x2491
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x1107
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x8998
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x2122
1207G	Indie Album data structures, dfs and similar, hashing, string suffix structures, strings, trees	2700	x972
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2300	x1049
1192B	Dynamic Diameter *special problem, data structures, dfs and similar, divide and conquer, trees		x1025
1188A2	Add on a Tree: Revolution constructive algorithms, dfs and similar, implementation, trees	2500	x1212
1187E	Tree Painting dfs and similar, dp, trees	2100	x7678
1186F	Vus the Cossack and a Graph dfs and similar, graphs, greedy, implementation	2400	x752
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x905
1182D	Complete Mirror constructive algorithms, dfs and similar, dp, hashing, implementation, trees	2400	x806
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x11001
1178G	The Awesomest Vertex data structures, dfs and similar	3000	x416
1178F1	Short Colorful Strip combinatorics, dfs and similar, dp	2200	x2060
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10517
1176D	Recover it! dfs and similar, graphs, greedy, number theory, sortings	1800	x5151
1175E	Minimal Segment Cover data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees	2200	x3215
1172B	Nauuo and Circle combinatorics, dfs and similar, dp, trees	1900	x3783
1167C	News Distribution dfs and similar, dsu, graphs	1400	x17234
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1707
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2200	x3714
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6145
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1900	x4850
1152E	Neko and Flashback constructive algorithms, dfs and similar, graphs	2400	x939
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8823
1147D	Palindrome XOR dfs and similar, graphs	2400	x731
1146D	Frog Jumping dfs and similar, math, number theory	2100	x1083
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x10871
1143C	Queen dfs and similar, trees	1400	x11535
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2000	x2793
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x2199
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12102
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3126
1132E	Knapsack dfs and similar, dp, greedy	2300	x1411
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x3177
1130C	Connect brute force, dfs and similar, dsu	1400	x8357
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2500	x1273
1118F2	Tree Cutting (Hard Version) combinatorics, dfs and similar, dp, trees	2700	x517
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x5721
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x853
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14024
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4002
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x781
1101D	GCD Counting data structures, dfs and similar, dp, number theory, trees	2000	x4450
1100E	Andrew and Taxi binary search, dfs and similar, graphs	2200	x2302
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x909
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x872
1098A	Sum in the tree constructive algorithms, dfs and similar, greedy, trees	1600	x8385
1093D	Beautiful Graph dfs and similar, graphs	1700	x8543
1092F	Tree with Maximum Cost dfs and similar, dp, trees	1900	x7330
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2000	x1629
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x110
1073F	Choosing Two Paths dfs and similar, dp, greedy, trees	2500	x522
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2608
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x1142
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1273
1062F	Upgrading Cities dfs and similar, graphs	2900	x564
1062E	Company binary search, data structures, dfs and similar, greedy, trees	2300	x1721
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x3876
1060E	Sergey and Subway dfs and similar, dp, trees	2000	x2994
1057A	Bmail Computer Network *special problem, dfs and similar, trees	900	x5801
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x5704
1045C	Hyperspace Highways dfs and similar, graphs, trees	2300	x624
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1552
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1244