Problemset - Codeforces

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Codeforces Round 946 (Div. 3)
3 days
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dfs and similar

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Problems

#	Name
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x50384
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x48085
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x46691
580C	Kefa and Park dfs and similar, graphs, trees	1500	x39910
115A	Party dfs and similar, graphs, trees	900	x32890
445A	DZY Loves Chessboard dfs and similar, implementation	1200	x28291
1324C	Frog Jumps binary search, data structures, dfs and similar, greedy, implementation	1100	x26946
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25286
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x24312
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23829
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22811
1433D	Districts Connection constructive algorithms, dfs and similar	1200	x21809
893C	Rumor dfs and similar, graphs, greedy	1300	x21726
377A	Maze dfs and similar	1600	x21426
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20409
1020B	Badge brute force, dfs and similar, graphs	1000	x20242
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19388
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x19311
1490D	Permutation Transformation dfs and similar, divide and conquer, implementation	1200	x18854
1311B	WeirdSort dfs and similar, sortings	1200	x18500
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x18294
277A	Learning Languages dfs and similar, dsu	1400	x18140
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x17641
1669G	Fall Down dfs and similar, implementation	1200	x17395
1167C	News Distribution dfs and similar, dsu, graphs	1400	x17100
546C	Soldier and Cards brute force, dfs and similar, games	1400	x17087
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x17076
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17021
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x16684
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x16291
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16260
1829F	Forever Winter dfs and similar, graphs, math	1300	x16250
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16192
862B	Mahmoud and Ehab and the bipartiteness dfs and similar, graphs, trees	1300	x16047
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x15945
522A	Reposts *special problem, dfs and similar, dp, graphs, trees	1200	x15736
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x15697
510C	Fox And Names dfs and similar, graphs, sortings	1600	x15179
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x14656
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x14551
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x14517
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x14268
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14068
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x13954
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x13914
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x13911
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x13886
687A	NP-Hard Problem dfs and similar, graphs	1500	x13789
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13714
161D	Distance in Tree dfs and similar, dp, trees	1800	x13633
510B	Fox And Two Dots dfs and similar	1500	x13435
948A	Protect Sheep brute force, dfs and similar, graphs, implementation	900	x13397
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x13311
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x13236
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13072
427C	Checkposts dfs and similar, graphs, two pointers	1700	x12998
1033A	King Escape dfs and similar, graphs, implementation	1000	x12989
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x12976
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x12715
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x12499
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12398
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x12131
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12107
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12091
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12056
1303C	Perfect Keyboard dfs and similar, greedy, implementation	1600	x11838
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x11724
129B	Students and Shoelaces brute force, dfs and similar, graphs, implementation	1200	x11719
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x11710
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x11512
1143C	Queen dfs and similar, trees	1400	x11424
910A	The Way to Home dfs and similar, dp, greedy, implementation	800	x11403
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11311
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10993
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x10858
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x10856
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x10813
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10548
1689C	Infected Tree dfs and similar, dp, trees	1600	x10518
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x10485
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x10485
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10465
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x10365
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10139
429A	Xor-tree dfs and similar, trees	1300	x10009
1406C	Link Cut Centroids constructive algorithms, dfs and similar, graphs, trees	1700	x9841
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9593
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x9527
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9495
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x9480
369C	Valera and Elections dfs and similar, graphs, trees	1600	x9458
1006E	Military Problem dfs and similar, graphs, trees	1600	x9453
919D	Substring dfs and similar, dp, graphs	1700	x9366
1388C	Uncle Bogdan and Country Happiness dfs and similar, greedy, math, trees	1800	x9364
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9279
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9214
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9190
1324F	Maximum White Subtree dfs and similar, dp, graphs, trees	1800	x9121
920C	Swap Adjacent Elements dfs and similar, greedy, math, sortings, two pointers	1400	x9006
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8869

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