Problemset - Codeforces

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Codeforces Round 954 (Div. 3)
3 days
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Problems

#	Name
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x33611
1850C	Word on the Paper implementation, strings	800	x42105
1850B	Ten Words of Wisdom implementation, sortings	800	x41204
1850A	To My Critics implementation, sortings	800	x52548
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x674
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1549
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x7932
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10029
1849B	Monsters greedy, math, sortings	1000	x23539
1849A	Morning Sandwich implementation, math	800	x27292
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1477
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x753
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2539
1848C	Vika and Price Tags math, number theory	1800	x6068
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13832
1848A	Vika and Her Friends games, math	900	x16412
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x865
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x321
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3647
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12401
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19367
1847A	The Man who became a God greedy, sortings	800	x21785
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4162
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2957
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6704
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15775
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18625
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x18229
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26329
1846A	Rudolph and Cut the Rope implementation, math	800	x31786
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x356
1845E	Boxes and Balls dp, implementation, math	2500	x1287
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7461
1845C	Strong Password binary search, dp, greedy, strings	1400	x13568
1845B	Come Together geometry, implementation, math	900	x21091
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x25271
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x133
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x662
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x374
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x745
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1700
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11846
1844C	Particles dp, greedy, implementation, math	1300	x15087
1844B	Permutations & Primes constructive algorithms, math	1000	x17662
1844A	Subtraction Game constructive algorithms, games	800	x24091
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1503
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5067
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x11372
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x17286
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x31659
1843B	Long Long greedy, math, two pointers	800	x28305
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33326
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x110
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x576
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x952
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1261
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1555
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x3957
1842C	Tenzing and Balls dp	1500	x11979
1842B	Tenzing and Books bitmasks, greedy, math	1100	x16100
1842A	Tenzing and Tsondu games, math	800	x19567
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x478
1841E	Fill the Matrix data structures, greedy, math	2200	x1914
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4203
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7424
1841B	Keep it Beautiful implementation	1000	x20883
1841A	Game with Board constructive algorithms, games	800	x24388
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x908
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2259
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1729
1840E	Character Blocking data structures, hashing, implementation	1600	x7692
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x13094
1840C	Ski Resort combinatorics, math, two pointers	1000	x25455
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21825
1840A	Cipher Shifer implementation, strings, two pointers	800	x33101
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1176
1839D	Ball Sorting data structures, dp, sortings	2100	x2212
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x11536
1839B	Lamps greedy, sortings	1100	x14660
1839A	The Good Array greedy, implementation, math	800	x17185
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x305
1838E	Count Supersequences combinatorics, dp, math	2500	x1389
1838D	Bracket Walk data structures, greedy, strings	2100	x3119
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13732
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x15989
1838A	Blackboard List constructive algorithms, math	800	x21206
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2096
1837E	Playoff Fixing combinatorics, trees	2200	x2123
1837D	Bracket Coloring constructive algorithms, greedy	1400	x13809
1837C	Best Binary String constructive algorithms, greedy	1000	x21357
1837B	Comparison String greedy	900	x27363
1837A	Grasshopper on a Line constructive algorithms, math	800	x30068
1836B	Astrophysicists greedy, math	1100	x12395
1836A	Destroyer implementation, sortings	800	x19981
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x157
1835E	Old Mobile combinatorics, dp, probabilities	3500	x216
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x457
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x947
1835B	Lottery binary search, brute force, greedy, math, two pointers	2500	x915
1835A	k-th equality brute force, implementation, math	1700	x7561