Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round (Div. 1)
3 weeks

Before contest
Codeforces Round (Div. 2)
3 weeks

→ Filter Problems

Difficulty: —

games

Add tag

Problems

#	Name
2013F1	Game in Tree (Easy Version) binary search, brute force, data structures, dp, games, greedy, implementation, trees	2700	x370
2006A	Iris and Game on the Tree constructive algorithms, dfs and similar, games, graphs, greedy, trees	1700	x6104
2005E2	Subtangle Game (Hard Version) data structures, dp, games, greedy, implementation	2500	x662
2005E1	Subtangle Game (Easy Version) dp, games, greedy, implementation	2100	x2336
2004E	Not a Nim Problem brute force, games, math, number theory	2100	x3803
2004C	Splitting Items games, greedy, sortings	1100	x22189
2003B	Turtle and Piggy Are Playing a Game 2 games, greedy, sortings	800	x24032
2002B	Removals Game constructive algorithms, games	1000	x17653
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings	3500	x689
1991I	Grid Game constructive algorithms, games, graph matchings, greedy, interactive	3500	x66
1991H	Prime Split Game bitmasks, dp, fft, games, math, number theory	3300	x418
1991E	Coloring Game constructive algorithms, dfs and similar, games, graphs, greedy, interactive	1900	x4010
1990A	Submission Bait brute force, games, greedy, sortings	900	x21652
1987D	World is Mine dp, games	1800	x6892
1972B	Coin Games games	900	x21088
1970C3	Game on Tree (Hard) dfs and similar, dp, games, trees	1900	x1456
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2534
1970C1	Game on Tree (Easy) games	1400	x3239
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x14597
1966A	Card Exchange constructive algorithms, games, greedy	800	x17600
1965E	Connected Cubes constructive algorithms, games	3100	x251
1965A	Everything Nim games, greedy, math, sortings	1400	x13392
1956B	Nene and the Card Game games, greedy	800	x21035
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x21346
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6948
1952E	Sweep Line combinatorics, games, math		x247
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x267
1943A	MEX Game 1 games, greedy	1300	x17609
1942E	Farm Game combinatorics, games	2300	x1653
1939D	Big Persimmon *special problem, dp, games		x87
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1372
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x15598
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14662
1921E	Eat the Chip brute force, games, greedy, math	1600	x9717
1920B	Summation Game games, greedy, math, sortings	1100	x20645
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x179
1919A	Wallet Exchange games, math	800	x33203
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x17709
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x12272
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x12113
1906G	Grid Game 2 games, number theory	2900	x192
1899A	Game with Integers games, math, number theory	800	x45682
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1556
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x16997
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x7348
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11206
1866I	Imagination Castle dp, games, two pointers	2300	x765
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2627
1860C	Game on Permutation data structures, dp, games, greedy	1400	x13299
1858A	Buttons games, greedy, math	800	x38323
1848A	Vika and Her Friends games, math	900	x16807
1844A	Subtraction Game constructive algorithms, games	800	x24518
1842A	Tenzing and Tsondu games, math	800	x19757
1841A	Game with Board constructive algorithms, games	800	x24672
1834C	Game with Reversing games, greedy, math, strings	1200	x13263
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1242
1817D	Toy Machine constructive algorithms, games, implementation	2700	x775
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x751
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x337
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x676
1776C	Library game games, greedy, interactive, sortings	2500	x798
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x479
1772E	Permutation Game games	1700	x6758
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3842
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x13916
1747C	Swap Game games	1200	x21194
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x11007
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9073
1738C	Even Number Addicts dp, games, greedy, math	1500	x11149
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5744
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7228
1719A	Chip Game games, math	800	x25504
1710E	Two Arrays binary search, games, graph matchings	2400	x505
1704F	Colouring Game constructive algorithms, dp, games	2600	x1037
1695B	Circle Game games, greedy	1000	x18448
1695A	Subrectangle Guess games	800	x16331
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23847
1681A	Game with Cards games, greedy	800	x20965
1673A	Subtle Substring Subtraction games, greedy, strings	800	x18431
1672A	Log Chopping games, implementation, math	800	x16067
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3922
1659F	Tree and Permutation Game dfs and similar, games, graphs, trees	3000	x191
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1046
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x2061
1628D1	Game on Sum (Easy Version) combinatorics, dp, games, math	2100	x3143
1627B	Not Sitting games, greedy, sortings	1300	x16625
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x869
1615E	Purple Crayon data structures, dfs and similar, games, graphs, greedy, math, sortings, trees	2400	x1477
1610I	Mashtali vs AtCoder games, trees	3100	x283
1605D	Treelabeling bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees	2100	x2934
1600E	Array Game games, greedy, two pointers	1900	x2097
1585G	Poachers dp, games, graphs, trees	2500	x182
1584E	Game with Stones binary search, data structures, games, greedy	2300	x1276
1537D	Deleting Divisors games, math, number theory	1700	x12378
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x955
1527B2	Palindrome Game (hard version) constructive algorithms, games	1900	x7914
1527B1	Palindrome Game (easy version) constructive algorithms, games	1200	x26057
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x783
1503B	3-Coloring constructive algorithms, games, interactive	1700	x7034
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x918

←