Problemset - Codeforces

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Codeforces Round 1123 (Div. 2)
15:23:41
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Problems

#	Name
2199D	Two Arrays *special problem, math	1800	x345
2199C	Minesweeper *special problem, constructive algorithms, greedy	1600	x579
2199B	Two Towers *special problem, greedy, math	1400	x1276
2199A	Game *special problem	1000	x1822
2197B	Array and Permutation implementation, schedules, sortings, two pointers	1100	x17309
2197A	Friendly Numbers binary search, brute force, expression parsing, math, schedules	800	x24414
2196F	Indivisible brute force, constructive algorithms, graphs	3300	x141
2196E2	Fuzzy Concatenation (Hard version) binary search, bitmasks, data structures, dp, greedy, string suffix structures	3000	x252
2196E1	Fuzzy Concatenation (Easy Version) binary search, bitmasks, brute force, data structures, greedy, string suffix structures	2900	x325
2196D	Double Bracket Sequence data structures, dp, expression parsing, flows, greedy, strings	2500	x1106
2196C2	Interactive Graph (Hard Version) combinatorics, dfs and similar, dp, graphs, interactive	2000	x2840
2196C1	Interactive Graph (Simple Version) binary search, combinatorics, dfs and similar, dp, graphs, interactive	1800	x4013
2196B	Another Problem about Beautiful Pairs brute force, math, two pointers	1600	x9680
2196A	Game with a Fraction games, math	1200	x17950
2195H	Codeforces Heuristic Contest 001 brute force, constructive algorithms, geometry, implementation	2400	x548
2195G	Idiot First Search and Queries binary search, data structures, dp, graphs, trees	2300	x1238
2195F	Parabola Independence dp, graphs, greedy, math, sortings	2000	x3053
2195E	Idiot First Search dfs and similar, dp, trees	1500	x9828
2195D	Absolute Cinema math	1300	x15269
2195C	Dice Roll Sequence dp, greedy	1100	x22660
2195B	Heapify 1 implementation, sortings	900	x27401
2195A	Sieve of Erato67henes math, number theory	800	x38678
2194F2	Again Trees... (hard version) bitmasks, data structures, dfs and similar, dp, fft, trees	3000	x237
2194F1	Again Trees... (Easy Version) bitmasks, dfs and similar, dp, trees	2300	x1030
2194E	The Turtle Strikes Back dp, graphs, greedy, implementation	2000	x2967
2194D	Table Cut constructive algorithms, greedy, implementation	1600	x8969
2194C	Secret message bitmasks, brute force, dp, math, number theory	1300	x11946
2194B	Offshores greedy, implementation, math	1000	x20437
2194A	Lawn Mower greedy, math	800	x25475
2193H	Remove the Grail Tree dfs and similar, dp, graphs, greedy, implementation, trees	2400	x1182
2193G	Paths in a Tree dfs and similar, interactive, sortings, trees	2100	x2468
2193F	Pizza Delivery dp, greedy	1600	x9594
2193E	Product Queries dp, math, number theory, shortest paths	1300	x16623
2193D	Monster Game binary search, sortings, two pointers	1100	x23347
2193C	Replace and Sum data structures, greedy	1000	x31050
2193B	Reverse a Permutation greedy	800	x31740
2193A	DBMB and the Array brute force, math	800	x45145
2192F	Fish Fight dp, dp, math, probabilities, probabilities	2900	x207
2192E	Swap to Rearrange constructive algorithms, dfs and similar, graph matchings, graphs, graphs, graphs, greedy, strings	2100	x2351
2192D	Cost of Tree dp, greedy, trees, trees	1800	x4100
2192C	All-in-one Gun binary search, greedy, math	1300	x12552
2192B	Flipping Binary String constructive algorithms, strings	1000	x16336
2192A	String Rotation Game brute force, strings	800	x19251
2191B	MEX Reordering constructive algorithms, sortings	1000	x21319
2191A	Array Coloring constructive algorithms	800	x29142
2190G	Maximize Determinant graphs	3300	x112
2190F	Xor Product bitmasks, dp	3300	x109
2190E	Median Permutation combinatorics	3200	x274
2190D	Prufer Vertex combinatorics, dsu, number theory, probabilities, trees	2500	x1050
2190C	Comparable Permutations greedy, implementation, interactive, sortings, two pointers	2300	x1401
2190B2	Sub-RBS (Hard Version) dp, games, implementation, strings	1900	x3466
2190B1	Sub-RBS (Easy Version) combinatorics, constructive algorithms, dp, greedy, strings, two pointers	1400	x11808
2190A	Sorting Game constructive algorithms, games, greedy	1200	x18696
2189F	Zhora the Vacuum Cleaner data structures, dfs and similar, dp, greedy, implementation, sortings, trees	2800	x266
2189E	Majority Wins? constructive algorithms, greedy, math, strings	2600	x924
2189D2	Little String (Hard Version) combinatorics, dp, greedy, math, number theory	2200	x2122
2189D1	Little String (Easy Version) combinatorics, dp, greedy, math, number theory	1900	x4337
2189C2	XOR-convenience (Hard Version) bitmasks, constructive algorithms, math	1800	x6641
2189C1	XOR Convenience (Easy Version) bitmasks, constructive algorithms, math	1300	x15017
2189B	The Curse of the Frog constructive algorithms, greedy, math	1200	x16593
2189A	Table with Numbers greedy, implementation	800	x25335
2188B	Seats greedy	1000	x22694
2188A	Divisible Permutation constructive algorithms	800	x27031
2187G	Many Cartesian Trees greedy, sortings, trees	3500	x123
2187F2	Al Fine (Counting Version) dp, trees	3500	x109
2187F1	Al Fine (Maximizing Version) binary search, data structures, divide and conquer, trees	3100	x272
2187E	Doors and Keys brute force, data structures, dp	3500	x383
2187D	Cool Problem bitmasks, dp, math	2600	x733
2187C	Jerry and Tom data structures, dfs and similar, dsu, games, graphs, greedy, trees	2300	x1524
2187B	Shortest Statement Ever bitmasks, constructive algorithms, dp, greedy	1800	x5788
2187A	Restricted Sorting greedy, sortings	1300	x17081
2185H	BattleCows 2 binary search, brute force, data structures, dp, greedy	2500	x796
2185G	Mixing MEXes data structures, implementation, math	1800	x3817
2185F	BattleCows data structures, divide and conquer, implementation	1700	x5683
2185E	The Robotic Rush binary search, greedy, implementation, two pointers	1500	x11361
2185D	OutOfMemoryError data structures, implementation, math, two pointers	1100	x22453
2185C	Shifted MEX implementation, sortings	900	x31488
2185B	Prefix Max greedy	800	x44382
2185A	Perfect Root constructive algorithms, math	800	x47108
2184G	Nastiness of Segments binary search, data structures	1900	x3300
2184F	Cherry Tree dfs and similar, dp, graphs, trees	1900	x4440
2184E	Exquisite Array combinatorics, data structures, dsu, sortings	1800	x6426
2184D	Unfair Game combinatorics, dp, math	1600	x10436
2184C	Huge Pile binary search, dfs and similar, dp, graphs, math	1100	x23637
2184B	Hourglass math	1100	x25859
2184A	Social Experiment math	800	x40634
2183I2	Pairs Flipping (Hard Version) constructive algorithms	3500	x92
2183I1	Pairs Flipping (Easy Version) constructive algorithms	3500	x103
2183H	Minimise Cost binary search, dp, greedy, sortings	3500	x179
2183G	Snake Instructions constructive algorithms, greedy, interactive	3200	x254
2183F	Jumping Man brute force, combinatorics, dfs and similar, dp, trees	2500	x1241
2183E	LCM is Legendary Counting Master dp, math, number theory	2100	x3074
2183D2	Tree Coloring (Hard Version) combinatorics, constructive algorithms, data structures, dfs and similar, greedy, implementation, trees	2100	x2636
2183D1	Tree Coloring (Easy Version) constructive algorithms, dfs and similar, greedy, trees	1500	x9550
2183C	War Strategy binary search, greedy, math, two pointers	1500	x11450
2183B	Yet Another MEX Problem constructive algorithms, greedy	1100	x16914
2183A	Binary Array Game games	800	x24375
2182G	Short Garland combinatorics, data structures, dfs and similar, dp, trees	2800	x402
2182F2	Christmas Reindeer (hard version) bitmasks, brute force, combinatorics, data structures, greedy, math	2500	x1182
2182F1	Christmas Reindeer (easy version) bitmasks, brute force, combinatorics, dp, math	2300	x1376

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