Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
26:05:09
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Codeforces Round 941 (Div. 2)
26:05:09
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Problems

#	Name
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x973
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x973
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x924
1280D	Miss Punyverse dp, greedy, trees	2500	x918
729F	Financiers Game dp	2500	x912
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x910
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x904
53E	Dead Ends bitmasks, dp	2500	x898
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x888
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x885
1096E	The Top Scorer combinatorics, dp, math, probabilities	2500	x859
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x842
735E	Ostap and Tree dp, trees	2500	x842
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x840
1806D	DSU Master combinatorics, dp, dsu, math	2500	x839
1420E	Battle Lemmings dp, greedy	2500	x839
1187F	Expected Square Beauty dp, math, probabilities	2500	x836
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x830
1909F2	Small Permutation Problem (Hard Version) combinatorics, dp, math	2500	x819
17C	Balance dp	2500	x812
1516E	Baby Ehab Plays with Permutations combinatorics, dp, math	2500	x810
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x765
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x755
888F	Connecting Vertices dp, graphs	2500	x744
1946F	Nobody is needed 2-sat, data structures, dfs and similar, dp	2500	x736
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x736
908E	New Year and Entity Enumeration bitmasks, combinatorics, dp, math	2500	x733
1055E	Segments on the Line binary search, dp	2500	x707
1903D2	Maximum And Queries (hard version) bitmasks, divide and conquer, dp, greedy	2500	x702
437E	The Child and Polygon dp, geometry	2500	x689
123E	Maze dfs and similar, dp, probabilities, trees	2500	x689
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x685
86C	Genetic engineering dp, string suffix structures, trees	2500	x680
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x657
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x654
946G	Almost Increasing Array data structures, dp	2500	x647
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x642
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x634
1076F	Summer Practice Report dp, greedy	2500	x619
993D	Compute Power binary search, dp, greedy	2500	x592
23E	Tree dp	2500	x587
954H	Path Counting combinatorics, dp	2500	x552
425E	Sereja and Sets dp	2500	x543
351C	Jeff and Brackets dp, matrices	2500	x538
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x531
1073F	Choosing Two Paths dfs and similar, dp, greedy, trees	2500	x518
1117F	Crisp String bitmasks, dp	2500	x517
1310B	Double Elimination dp, implementation	2500	x488
958C3	Encryption (hard) data structures, dp	2500	x484
101E	Candies and Stones divide and conquer, dp	2500	x477
433E	Tachibana Kanade's Tofu dp	2500	x470
138D	World of Darkraft dp, games	2500	x469
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x467
1056F	Write The Contest binary search, dp, math	2500	x462
161E	Polycarpus the Safecracker brute force, dp	2500	x462
331C3	The Great Julya Calendar dp	2500	x461
152E	Garden bitmasks, dp, graphs, trees	2500	x459
68D	Half-decay tree data structures, divide and conquer, dp, math, probabilities	2500	x446
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x432
845F	Guards In The Storehouse bitmasks, dp	2500	x416
95D	Horse Races dp, math	2500	x413
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2500	x409
264D	Colorful Stones dp, two pointers	2500	x406
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x403
263E	Rhombus brute force, data structures, dp	2500	x394
596E	Wilbur and Strings dfs and similar, dp, graphs, strings	2500	x388
1725J	Journey dp, trees	2500	x356
883D	Packmen Strike Back binary search, dp, math	2500	x349
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x344
93D	Flags dp, math, matrices	2500	x333
57D	Journey dp, math	2500	x329
176D	Hyper String dp	2500	x299
370E	Summer Reading dp, greedy	2500	x228
1585G	Poachers dp, games, graphs, trees	2500	x169
185C	Clever Fat Rat dp	2500	x130
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x122
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x71
321E	Ciel and Gondolas data structures, divide and conquer, dp	2600	x4481
631E	Product Sum data structures, dp, geometry	2600	x2199
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x2093
1223F	Stack Exterminable Arrays data structures, divide and conquer, dp, hashing	2600	x1942
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1939
6D	Lizards and Basements 2 brute force, dp	2600	x1807
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x1709
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1639
1523E	Crypto Lights combinatorics, dp, math, probabilities	2600	x1522
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1464
1363F	Rotating Substrings dp, strings	2600	x1276
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1268
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1209
650D	Zip-line binary search, data structures, dp, hashing	2600	x1185
1554E	You dfs and similar, dp, math, number theory	2600	x1176
1264D1	Beautiful Bracket Sequence (easy version) combinatorics, dp, probabilities	2600	x1170
1437F	Emotional Fishermen combinatorics, dp, math, two pointers	2600	x1162
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x1132
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1080
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1075
1815D	XOR Counting bitmasks, combinatorics, dp, math	2600	x1028
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1025
917D	Stranger Trees dp, math, matrices, trees	2600	x999