Problemset - Codeforces

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Educational Codeforces Round 166 (Rated for Div. 2)
25:45:20
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brute force

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Problems

#	Name
200C	Football Championship brute force, implementation	1800	x1005
440C	One-Based Arithmetic brute force, dfs and similar, divide and conquer	1800	x894
200D	Programming Language binary search, brute force, expression parsing, implementation	1800	x879
105B	Dark Assembly brute force, probabilities	1800	x798
638D	Three-dimensional Turtle Super Computer brute force, dfs and similar, graphs	1800	x688
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x370
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x323
64E	Prime Segment *special problem, brute force, math, number theory	1800	x235
72E	Ali goes shopping *special problem, brute force, strings	1800	x151
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x9839
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8761
1358D	The Best Vacation binary search, brute force, greedy, implementation, two pointers	1900	x8041
1627D	Not Adding brute force, dp, math, number theory	1900	x7883
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7514
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7363
1353E	K-periodic Garland brute force, dp, greedy	1900	x6787
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6718
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6462
1512F	Education brute force, dp, greedy, implementation	1900	x5972
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5941
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5589
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5565
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5554
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x5553
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5396
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5318
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5276
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5204
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5197
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5162
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x5140
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x5111
1475F	Unusual Matrix 2-sat, brute force, constructive algorithms	1900	x5105
1213E	Two Small Strings brute force, constructive algorithms	1900	x5063
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4963
1119E	Pavel and Triangles brute force, dp, fft, greedy, ternary search	1900	x4900
1593D2	Half of Same brute force, math, number theory	1900	x4822
1821D	Black Cells binary search, brute force, greedy, math	1900	x4785
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4623
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4382
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4365
1178E	Archaeology brute force, constructive algorithms, greedy, strings	1900	x4262
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4153
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4092
1200D	White Lines brute force, data structures, dp, implementation, two pointers	1900	x4069
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4056
835D	Palindromic characteristics brute force, dp, hashing, strings	1900	x3953
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3943
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3939
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x3893
1384B1	Koa and the Beach (Easy Version) brute force, dp, greedy	1900	x3853
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3829
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3812
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3808
1891D	Suspicious logarithms binary search, brute force, math	1900	x3733
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x3725
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3666
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3604
1168B	Good Triple brute force, two pointers	1900	x3502
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3501
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3376
1017D	The Wu bitmasks, brute force, data structures	1900	x3355
650B	Image Preview binary search, brute force, dp, two pointers	1900	x3310
1163C1	Power Transmission (Easy Edition) brute force, geometry	1900	x3268
839B	Game of the Rows brute force, greedy, implementation	1900	x3267
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3063
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x3013
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3009
1147B	Chladni Figure brute force, strings	1900	x2819
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2766
599D	Spongebob and Squares brute force, math	1900	x2533
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2527
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2526
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x2484
982D	Shark brute force, data structures, dsu, trees	1900	x2249
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2174
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2091
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2072
952B	A Map of the Cat brute force, interactive	1900	x2005
993B	Open Communication bitmasks, brute force	1900	x1931
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x1924
653C	Bear and Up-Down brute force, implementation	1900	x1628
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1422
126A	Hot Bath binary search, brute force, math	1900	x1408
109B	Lucky Probability brute force, probabilities	1900	x1325
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1271
173C	Spiral Maximum brute force, dp	1900	x965
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x854
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x401
1311D	Three Integers brute force, math	2000	x8684
1244C	The Football Season brute force, math, number theory	2000	x7437
1200E	Compress Words brute force, hashing, implementation, string suffix structures, strings	2000	x7075
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6322
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x6281
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6193
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x5820
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5434
1415D	XOR-gun bitmasks, brute force, constructive algorithms	2000	x5205
1716D	Chip Move brute force, dp, math	2000	x5016
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4946