Problemset - Codeforces

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Problems

#	Name
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings		x97
1990A	Submission Bait brute force, games, greedy, sortings		x17393
1987D	World is Mine dp, games	1800	x6032
1972B	Coin Games games	900	x19838
1970C3	Game on Tree (Hard) dfs and similar, dp, games, trees	1900	x1245
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2142
1970C1	Game on Tree (Easy) games	1400	x2796
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13844
1966A	Card Exchange constructive algorithms, games, greedy	800	x16856
1965E	Connected Cubes constructive algorithms, games	3100	x218
1965A	Everything Nim games, greedy, math, sortings	1400	x12426
1956B	Nene and the Card Game games, greedy	800	x20475
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x20693
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6583
1952E	Sweep Line combinatorics, games, math		x228
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x234
1943A	MEX Game 1 games, greedy	1300	x16767
1942E	Farm Game combinatorics, games	2300	x1574
1939D	Big Persimmon *special problem, dp, games		x86
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1282
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x14626
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14113
1921E	Eat the Chip brute force, games, greedy, math	1600	x9373
1920B	Summation Game games, greedy, math, sortings	1100	x20095
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x176
1919A	Wallet Exchange games, math	800	x32548
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17302
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11820
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11711
1906G	Grid Game 2 games, number theory	2900	x159
1899A	Game with Integers games, math, number theory	800	x41733
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1517
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x16580
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x7004
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10957
1866I	Imagination Castle dp, games, two pointers	2300	x717
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2525
1860C	Game on Permutation data structures, dp, games, greedy	1400	x12959
1858A	Buttons games, greedy, math	800	x36392
1848A	Vika and Her Friends games, math	900	x16569
1844A	Subtraction Game constructive algorithms, games	800	x24268
1842A	Tenzing and Tsondu games, math	800	x19657
1841A	Game with Board constructive algorithms, games	800	x24509
1834C	Game with Reversing games, greedy, math, strings	1200	x13022
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1210
1817D	Toy Machine constructive algorithms, games, implementation	2700	x724
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x733
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x313
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x652
1776C	Library game games, greedy, interactive, sortings	2500	x772
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x465
1772E	Permutation Game games	1700	x6634
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3760
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x13714
1747C	Swap Game games	1200	x20854
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10857
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8916
1738C	Even Number Addicts dp, games, greedy, math	1500	x10941
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5665
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7061
1719A	Chip Game games, math	800	x25251
1710E	Two Arrays binary search, games, graph matchings	2400	x489
1704F	Colouring Game constructive algorithms, dp, games	2600	x950
1695B	Circle Game games, greedy	1000	x18265
1695A	Subrectangle Guess games	800	x16239
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23696
1681A	Game with Cards games, greedy	800	x20866
1673A	Subtle Substring Subtraction games, greedy, strings	800	x18356
1672A	Log Chopping games, implementation, math	800	x15980
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3827
1659F	Tree and Permutation Game dfs and similar, games, graphs, trees	3000	x189
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1032
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x2021
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3079
1627B	Not Sitting games, greedy, sortings	1300	x16452
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x853
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1424
1610I	Mashtali vs AtCoder games, trees	3100	x278
1605D	Treelabeling bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees	2100	x2871
1600E	Array Game games, greedy, two pointers	1900	x1992
1585G	Poachers dp, games, graphs, trees	2500	x175
1584E	Game with Stones binary search, data structures, games, greedy	2300	x1248
1537D	Deleting Divisors games, math, number theory	1700	x12154
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x926
1527B2	Palindrome Game (hard version) constructive algorithms, games	1900	x7757
1527B1	Palindrome Game (easy version) constructive algorithms, games	1200	x25276
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x721
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6924
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x871
1495B	Let's Go Hiking games, greedy	1900	x5900
1480A	Yet Another String Game games, greedy, strings	800	x25692
1472D	Even-Odd Game dp, games, greedy, sortings	1200	x26665
1458E	Nim Shortcuts data structures, games	3100	x472
1455C	Ping-pong constructive algorithms, games, math	1100	x19460
1451F	Nullify The Matrix constructive algorithms, games	2700	x941
1451D	Circle Game games, geometry, math	1700	x9384
1442F	Differentiating Games games, interactive	3400	x130
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x219
1434E	A Convex Game dsu, games	3500	x169
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x181

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