Problemset - Codeforces

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Codeforces Round 1101 (Div. 2)
01:48:31
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constructive algorithms

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Problems

#	Name
2231F	Quadratic Jumps brute force, constructive algorithms, greedy, math, number theory	2600	x550
2231D	Maximum Prefix Sums constructive algorithms, greedy, implementation, two pointers	1900	x2816
2231B	Another Sorting Problem constructive algorithms	1100	x14328
2231A	Construct an Array constructive algorithms	800	x20293
2230C	Arrange the Numbers in a Circle constructive algorithms, implementation, math	1300	x8913
2229C2	We Be Flipping (Hard Version) constructive algorithms, dp, greedy	1400	x6854
2229C1	We Be Flipping (Easy Version) constructive algorithms, greedy	900	x12556
2227D	Palindromex binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers	1200	x11164
2227C	Snowfall constructive algorithms, math	800	x19292
2226D	Reserved Reversals constructive algorithms, dp, greedy, math	1900	x2696
2225E	Covering Points with Circles constructive algorithms, geometry, math	2200	x1179
2224B	Zhily and Mex and Max constructive algorithms, greedy, math, sortings	1200	x6913
2224A	Zhily and Array Operating constructive algorithms, greedy	800	x9929
2223A	Zhily and Bracket Swapping constructive algorithms, greedy	1300	x6165
2222E	Seek the Truth binary search, bitmasks, constructive algorithms, interactive	2000	x2151
2222D	Permutation Construction constructive algorithms, data structures, sortings	1800	x3504
2219E	Weird Chessboard constructive algorithms, math	3500	x110
2219B2	Unique Values (Hard version) binary search, bitmasks, constructive algorithms, interactive	2000	x3444
2219B1	Unique Values (Easy version) binary search, constructive algorithms, divide and conquer, interactive, math	1900	x3855
2219A	Grid L brute force, constructive algorithms, math, number theory	1400	x9621
2218F	The 67th Tree Problem constructive algorithms, implementation, trees	1500	x8186
2218D	The 67th OEIS Problem constructive algorithms, greedy, greedy, greedy, math, math, number theory	1100	x19839
2218C	The 67th Permutation Problem constructive algorithms, greedy, math	800	x28616
2217F	Interval Game bitmasks, combinatorics, constructive algorithms, dp, games, games, greedy, greedy, math, probabilities	2300	x808
2217E	Definitely Larger binary search, constructive algorithms, data structures, graphs, greedy, sortings	2000	x2297
2215E	Star Map constructive algorithms, data structures, geometry, greedy, sortings	2700	x191
2215C	Oriented Journey bitmasks, brute force, communication, constructive algorithms, graphs, interactive, trees	2200	x724
2215A	Interval Mod constructive algorithms, dp, greedy, math	1700	x3172
2211G	Rational Bubble Sort constructive algorithms, geometry, greedy	2900	x303
2211C2	Equal Multisets (Hard Version) constructive algorithms, dsu, greedy	1800	x3910
2211B	Mickey Mouse Constructive constructive algorithms, dp, greedy, math	1100	x12266
2210E	Binary Strings are Simple? constructive algorithms, implementation, interactive, number theory	2700	x341
2210D	A Simple RBS Problem constructive algorithms, math, strings, trees	2100	x2148
2210A	A Simple Sequence constructive algorithms, dp, greedy, number theory	800	x23473
2209D	Ghostfires constructive algorithms, greedy	1800	x5585
2209C	Find the Zero constructive algorithms, interactive	1400	x11238
2208D1	Tree Orientation (Easy Version) constructive algorithms, dfs and similar, dsu, graphs, greedy, matrices, trees	1800	x4442
2208A	Bingo Candies constructive algorithms, math	800	x21027
2207H3	Bowser's Castle (Hard Version) constructive algorithms, divide and conquer, interactive, trees, two pointers		x60
2207H2	Bowser's Castle (Medium Version) constructive algorithms, divide and conquer, interactive, trees, two pointers		x42
2207H1	Bowser's Castle (Easy Version) binary search, constructive algorithms, divide and conquer, greedy, interactive, trees		x54
2207G	Toothless constructive algorithms, dfs and similar, dsu	3300	x165
2207E2	N-MEX (Counting Version) combinatorics, constructive algorithms, math	2400	x907
2207E1	N-MEX (Constructive Version) constructive algorithms, greedy	2100	x1722
2205F	Simons and Reconstructing His Roads constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, data structures, data structures, dsu, graphs	2400	x675
2205A	Simons and Making It Beautiful brute force, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms	800	x17832
2204E	Sum of Digits (and Again) brute force, constructive algorithms, math	1800	x4956
2204D	Alternating Path constructive algorithms, dfs and similar, graph matchings, graphs, graphs, graphs, graphs	1400	x9374
2201G	Codeforces Heuristic Contest 1001 constructive algorithms	3500	x69
2201F2	Monotone Monochrome Matrices (Hard Version) constructive algorithms, data structures, hashing, math	2800	x411
2201B	Recollect Numbers constructive algorithms	1700	x5132
2199C	Minesweeper *special problem, constructive algorithms, greedy	1600	x457
2196F	Indivisible brute force, constructive algorithms, graphs	3300	x110
2195H	Codeforces Heuristic Contest 001 brute force, constructive algorithms, geometry, implementation	2400	x488
2194D	Table Cut constructive algorithms, greedy, implementation	1600	x8155
2192E	Swap to Rearrange constructive algorithms, dfs and similar, graph matchings, graphs, graphs, graphs, greedy, strings	2100	x2158
2192B	Flipping Binary String constructive algorithms, strings	1000	x15027
2191B	MEX Reordering constructive algorithms, sortings	1000	x20254
2191A	Array Coloring constructive algorithms	800	x28140
2190B1	Sub-RBS (Easy Version) combinatorics, constructive algorithms, dp, greedy, strings, two pointers	1400	x10961
2190A	Sorting Game constructive algorithms, games, greedy	1200	x17510
2189E	Majority Wins? constructive algorithms, greedy, math, strings	2600	x848
2189C2	XOR-convenience (Hard Version) bitmasks, constructive algorithms, math	1800	x6294
2189C1	XOR Convenience (Easy Version) bitmasks, constructive algorithms, math	1300	x14153
2189B	The Curse of the Frog constructive algorithms, greedy, math	1200	x15633
2188A	Divisible Permutation constructive algorithms	800	x26186
2187B	Shortest Statement Ever bitmasks, constructive algorithms, dp, greedy	1800	x5410
2185A	Perfect Root constructive algorithms, math	800	x43935
2183I2	Pairs Flipping (Hard Version) constructive algorithms	3500	x74
2183I1	Pairs Flipping (Easy Version) constructive algorithms	3500	x85
2183G	Snake Instructions constructive algorithms, greedy, interactive	3200	x223
2183D2	Tree Coloring (Hard Version) combinatorics, constructive algorithms, data structures, dfs and similar, greedy, implementation, trees	2100	x2523
2183D1	Tree Coloring (Easy Version) constructive algorithms, dfs and similar, greedy, trees	1500	x9021
2183B	Yet Another MEX Problem constructive algorithms, greedy	1100	x16324
2182A	New Year String constructive algorithms, greedy, implementation, strings	800	x25622
2181K	Knit the Grid 2-sat, constructive algorithms, graphs, matrices	3500	x70
2181E	Elevator Against Humanity brute force, constructive algorithms, greedy, sortings	2900	x148
2181C	Cacti Classification binary search, constructive algorithms, interactive, math	3200	x154
2180C	XOR-factorization bitmasks, constructive algorithms, dp, greedy, number theory	1900	x6521
2179F	Blackslex and Another RGB Walking communication, constructive algorithms, graphs, interactive, number theory, trees	2000	x2811
2179E	Blackslex and Girls constructive algorithms, geometry, math	1800	x5867
2179D	Blackslex and Penguin Civilization bitmasks, constructive algorithms, greedy, math	1300	x13705
2178D	Xmas or Hysteria constructive algorithms, greedy, implementation, math	1700	x6784
2175B	XOR Array constructive algorithms, math	1300	x12438
2174E1	Game of Scientists (Version 1) chinese remainder theorem, constructive algorithms, interactive, math	3100	x137
2173E	Shiro's Mirror Duel constructive algorithms, greedy, interactive, probabilities, sortings	2200	x1564
2173C	Kanade's Perfect Multiples brute force, constructive algorithms, greedy, number theory	1400	x12651
2172N	New Kingdom constructive algorithms, graphs, implementation	2800	x166
2171F	Rae Taylor and Trees (hard version) binary search, constructive algorithms, data structures, dp, dsu, greedy, implementation, trees	1600	x7280
2171E	Anisphia Wynn Palettia and Good Permutations constructive algorithms, greedy, number theory	2000	x3698
2170D	Almost Roman constructive algorithms, greedy, implementation	2200	x1707
2168C	Intercepting Butterflies bitmasks, communication, constructive algorithms, graphs, interactive		x881
2168B	Locate binary search, combinatorics, communication, constructive algorithms, greedy, interactive		x1585
2168A1	Encode and Decode (Easy Version) communication, constructive algorithms, interactive		x5087
2167C	Isamatdin and His Magic Wand! constructive algorithms, greedy, implementation, sortings	800	x36375
2165E	Rainbow Branch constructive algorithms, dp, greedy, trees	3200	x307
2165A	Cyclic Merging constructive algorithms, greedy	1300	x14530
2164G	Pointless Machine constructive algorithms, graphs, interactive, trees	3300	x228
2163B	Siga ta Kymata constructive algorithms, greedy, implementation, math	1700	x9252
2162G	Beautiful Tree constructive algorithms, math, probabilities, trees	2200	x2832

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