Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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dsu

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Problems

#	Name
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x11919
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x11972
356A	Knight Tournament data structures, dsu	1500	x12706
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x13201
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x14578
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x15560
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x19120
60B	Serial Time! dfs and similar, dsu	1400	x4430
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5521
1130C	Connect brute force, dfs and similar, dsu	1400	x8299
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x9474
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9533
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x9855
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12059
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x12059
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12082
1292A	NEKO's Maze Game data structures, dsu, implementation	1400	x12928
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x13167
1167C	News Distribution dfs and similar, dsu, graphs	1400	x16801
277A	Learning Languages dfs and similar, dsu	1400	x18047
1055B	Alice and Hairdresser dsu, implementation	1300	x4892
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x5425
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7357
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x11387
1726C	Jatayu's Balanced Bracket Sequence data structures, dsu, graphs, greedy	1300	x11841
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12468
1638C	Inversion Graph data structures, dsu, graphs, math	1300	x14336
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16218
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18002
959B	Mahmoud and Ehab and the message dsu, greedy, implementation	1200	x9069
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x10443
1592B	Hemose Shopping constructive algorithms, dsu, math, sortings	1200	x15549
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20315
501B	Misha and Changing Handles data structures, dsu, strings	1100	x15543
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x18066
1249B1	Books Exchange (easy version) dsu, math	1000	x20071
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x21166

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