Problemset - Codeforces

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Codeforces Round (Div. 3)
6 days

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Problems

#	Name
2063C	Remove Exactly Two brute force, data structures, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x10360
2061D	Kevin and Numbers bitmasks, data structures	1600	x7820
2061C	Kevin and Puzzle 2-sat, combinatorics, dp	1600	x7050
2052A	Adrenaline Rush constructive algorithms	1600	x2498
2051E	Best Price binary search, brute force, data structures, greedy, sortings	1600	x8786
2048D	Kevin and Competition Memories binary search, brute force, data structures, greedy, sortings, two pointers	1600	x6709
2046B	Move Back at a Cost binary search, data structures, greedy, sortings	1600	x8192
2043C	Sums on Segments binary search, brute force, data structures, dp, greedy, math	1600	x8539
2040C	Ordered Permutations bitmasks, combinatorics, constructive algorithms, greedy, math, two pointers	1600	x8543
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x5807
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x7711
2034D	Darius' Wisdom constructive algorithms, greedy, implementation, sortings	1600	x5122
2028C	Alice's Adventures in Cutting Cake binary search, dp, greedy, two pointers	1600	x7766
2018A	Cards Partition 2-sat, brute force, greedy, implementation, math	1600	x10895
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x11330
1996E	Decode combinatorics, data structures, implementation, math	1600	x10508
1994C	Hungry Games binary search, dp, two pointers	1600	x11523
1985G	D-Function combinatorics, math, number theory	1600	x10101
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x11104
1978D	Elections data structures, greedy, implementation, math	1600	x11938
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x10898
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x10755
1968E	Cells Arrangement constructive algorithms	1600	x11012
1958D	Staircase *special problem	1600	x568
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x10259
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x13642
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x11704
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x10288
1938H	Pho Restaurant	1600	x2269
1932E	Final Countdown implementation, math, number theory	1600	x8737
1928C	Physical Education Lesson brute force, math, number theory	1600	x9079
1921E	Eat the Chip brute force, games, greedy, math	1600	x10237
1920C	Partitioning the Array brute force, math, number theory	1600	x14906
1917C	Watering an Array brute force, greedy, implementation, math	1600	x11028
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x662
1910B	Security Guard *special problem, greedy	1600	x699
1907E	Good Triples brute force, combinatorics, number theory	1600	x11315
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x7331
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x8229
1886C	Decreasing String implementation, strings	1600	x12478
1878D	Reverse Madness data structures, greedy	1600	x8857
1875D	Jellyfish and Mex dp	1600	x9437
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x11322
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x10591
1857F	Sum and Product binary search, data structures, math	1600	x12361
1856C	To Become Max binary search, brute force, data structures, dp	1600	x13468
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x11101
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x13466
1840E	Character Blocking data structures, hashing, implementation	1600	x8449
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x12950
1829G	Hits Different data structures, dp, implementation, math	1600	x11348
1822E	Making Anti-Palindromes greedy, math, strings	1600	x10969
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7869
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7935
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8961
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10783
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x8035
1796C	Maximum Set binary search, math	1600	x10885
1795D	Triangle Coloring combinatorics, math	1600	x9868
1787C	Remove the Bracket dp, greedy, math	1600	x7401
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x8113
1779C	Least Prefix Sum data structures, greedy	1600	x12886
1778C	Flexible String bitmasks, brute force, strings	1600	x8777
1775C	Interesting Sequence bitmasks, math	1600	x11166
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x8269
1771C	Hossam and Trainees greedy, math, number theory	1600	x10162
1766D	Lucky Chains math, number theory	1600	x9332
1753B	Factorial Divisibility math, number theory	1600	x13297
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11674
1741E	Sending a Sequence Over the Network dp	1600	x13416
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x13550
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x11516
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x9402
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x14088
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x11268
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x14198
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x9952
1689C	Infected Tree dfs and similar, dp, trees	1600	x11748
1687A	The Enchanted Forest brute force, greedy	1600	x10631
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10230
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8687
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7902
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8614
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7543
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x9133
1658D1	388535 (Easy Version) bitmasks, math	1600	x9342
1633D	Make Them Equal dp, greedy	1600	x15039
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x13029
1623C	Balanced Stone Heaps binary search, greedy	1600	x12762
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x13672
1615C	Menorah brute force, graphs, greedy, math	1600	x8577
1612D	X-Magic Pair math, number theory	1600	x9478
1610C	Keshi Is Throwing a Party binary search, greedy	1600	x12446
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x7518
1607E	Robot on the Board 1 implementation	1600	x9511
1603B	Moderate Modular Mode constructive algorithms, math, number theory	1600	x13980
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x13020
1582D	Vupsen, Pupsen and 0 constructive algorithms, math	1600	x10846
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12416
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x8019

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