Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
19:12:03
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Codeforces Round 941 (Div. 2)
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brute force

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Problems

#	Name
64E	Prime Segment *special problem, brute force, math, number theory	1800	x234
72E	Ali goes shopping *special problem, brute force, strings	1800	x150
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x9777
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8707
1358D	The Best Vacation binary search, brute force, greedy, implementation, two pointers	1900	x7999
1627D	Not Adding brute force, dp, math, number theory	1900	x7804
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7485
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7324
1353E	K-periodic Garland brute force, dp, greedy	1900	x6761
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6672
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6282
1512F	Education brute force, dp, greedy, implementation	1900	x5918
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5897
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5576
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5525
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5518
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x5483
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5381
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5241
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5179
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5168
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5144
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5124
1475F	Unusual Matrix 2-sat, brute force, constructive algorithms	1900	x5061
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5055
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x4963
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1213E	Two Small Strings brute force, constructive algorithms	1900	x4908
1119E	Pavel and Triangles brute force, dp, fft, greedy, ternary search	1900	x4881
1593D2	Half of Same brute force, math, number theory	1900	x4786
1821D	Black Cells binary search, brute force, greedy, math	1900	x4736
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4596
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4351
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4335
1178E	Archaeology brute force, constructive algorithms, greedy, strings	1900	x4113
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4046
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3937
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3914
1200D	White Lines brute force, data structures, dp, implementation, two pointers	1900	x3909
835D	Palindromic characteristics brute force, dp, hashing, strings	1900	x3887
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3886
1384B1	Koa and the Beach (Easy Version) brute force, dp, greedy	1900	x3833
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x3813
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3696
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3684
1891D	Suspicious logarithms binary search, brute force, math	1900	x3683
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x3683
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3560
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3405
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3358
1017D	The Wu bitmasks, brute force, data structures	1900	x3331
650B	Image Preview binary search, brute force, dp, two pointers	1900	x3307
1168B	Good Triple brute force, two pointers	1900	x3306
839B	Game of the Rows brute force, greedy, implementation	1900	x3257
1163C1	Power Transmission (Easy Edition) brute force, geometry	1900	x3247
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3058
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3054
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3000
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x2957
1147B	Chladni Figure brute force, strings	1900	x2804
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2749
599D	Spongebob and Squares brute force, math	1900	x2530
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2514
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2513
982D	Shark brute force, data structures, dsu, trees	1900	x2244
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2171
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2076
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2069
952B	A Map of the Cat brute force, interactive	1900	x1990
993B	Open Communication bitmasks, brute force	1900	x1928
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x1906
653C	Bear and Up-Down brute force, implementation	1900	x1622
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1417
126A	Hot Bath binary search, brute force, math	1900	x1402
109B	Lucky Probability brute force, probabilities	1900	x1320
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1266
173C	Spiral Maximum brute force, dp	1900	x955
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x853
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x397
1311D	Three Integers brute force, math	2000	x8630
1244C	The Football Season brute force, math, number theory	2000	x7410
1200E	Compress Words brute force, hashing, implementation, string suffix structures, strings	2000	x6845
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6261
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x6191
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6145
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x5803
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5399
1415D	XOR-gun bitmasks, brute force, constructive algorithms	2000	x5159
1716D	Chip Move brute force, dp, math	2000	x4975
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4921
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x4811
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4695
466B	Wonder Room brute force, math	2000	x4591
1830B	The BOSS Can Count Pairs brute force, math	2000	x4576
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4516
598E	Chocolate Bar brute force, dp	2000	x4453
1493C	K-beautiful Strings binary search, brute force, constructive algorithms, greedy, strings	2000	x4451
475D	CGCDSSQ brute force, data structures, math	2000	x4446
1804D	Accommodation brute force, dp, greedy, implementation	2000	x4409