Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
39:03:54
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dfs and similar

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Problems

#	Name
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x50352
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x48050
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46658
580C	Kefa and Park dfs and similar, graphs, trees	1500	x39882
115A	Party dfs and similar, graphs, trees	900	x32878
445A	DZY Loves Chessboard dfs and similar, implementation	1200	x28275
1324C	Frog Jumps binary search, data structures, dfs and similar, greedy, implementation	1100	x26942
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25263
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x24290
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23820
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22801
1433D	Districts Connection constructive algorithms, dfs and similar	1200	x21798
893C	Rumor dfs and similar, graphs, greedy	1300	x21713
377A	Maze dfs and similar	1600	x21412
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20400
1020B	Badge brute force, dfs and similar, graphs	1000	x20232
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19375
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x19294
1490D	Permutation Transformation dfs and similar, divide and conquer, implementation	1200	x18846
1311B	WeirdSort dfs and similar, sortings	1200	x18494
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x18275
277A	Learning Languages dfs and similar, dsu	1400	x18133
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x17636
1669G	Fall Down dfs and similar, implementation	1200	x17381
1167C	News Distribution dfs and similar, dsu, graphs	1400	x17092
546C	Soldier and Cards brute force, dfs and similar, games	1400	x17079
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x17064
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17014
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x16657
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x16282
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16259
1829F	Forever Winter dfs and similar, graphs, math	1300	x16232
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16182
862B	Mahmoud and Ehab and the bipartiteness dfs and similar, graphs, trees	1300	x16034
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x15932
522A	Reposts *special problem, dfs and similar, dp, graphs, trees	1200	x15726
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x15688
510C	Fox And Names dfs and similar, graphs, sortings	1600	x15162
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x14653
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x14507
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x14505
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x14253
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14061
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x13942
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x13910
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x13899
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x13877
687A	NP-Hard Problem dfs and similar, graphs	1500	x13784
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13708
161D	Distance in Tree dfs and similar, dp, trees	1800	x13615
510B	Fox And Two Dots dfs and similar	1500	x13430
948A	Protect Sheep brute force, dfs and similar, graphs, implementation	900	x13395
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x13308
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x13226
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13070
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12989
1033A	King Escape dfs and similar, graphs, implementation	1000	x12983
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x12967
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x12709
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x12485
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12381
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x12123
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12102
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12081
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12048
1303C	Perfect Keyboard dfs and similar, greedy, implementation	1600	x11831
129B	Students and Shoelaces brute force, dfs and similar, graphs, implementation	1200	x11711
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x11709
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x11705
1143C	Queen dfs and similar, trees	1400	x11410
910A	The Way to Home dfs and similar, dp, greedy, implementation	800	x11398
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11295
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x11251
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10990
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x10852
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x10849
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x10807
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10545
1689C	Infected Tree dfs and similar, dp, trees	1600	x10512
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x10484
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x10461
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10457
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x10351
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10134
429A	Xor-tree dfs and similar, trees	1300	x10007
1406C	Link Cut Centroids constructive algorithms, dfs and similar, graphs, trees	1700	x9831
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9589
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x9522
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9483
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x9472
369C	Valera and Elections dfs and similar, graphs, trees	1600	x9450
1006E	Military Problem dfs and similar, graphs, trees	1600	x9445
1388C	Uncle Bogdan and Country Happiness dfs and similar, greedy, math, trees	1800	x9360
919D	Substring dfs and similar, dp, graphs	1700	x9355
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9275
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9210
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9179
1324F	Maximum White Subtree dfs and similar, dp, graphs, trees	1800	x9112
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x9002
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8866

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