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192 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
2249CDouble-Rift Dial
data structuresdfs and similardsuimplementationtwo pointers
unrated1.1k
2245D1Construct an Array (Easy Version)
dfs and similarimplementationsortings
unrated3.2k
2245D2Construct an Array (Hard Version)
2-satconstructive algorithmsdfs and similargraphsimplementation
unrated1.7k
2236GCriterion in Burlandia
binary searchbitmasksbrute forcedata structuresdfs and similardivide and conquerimplementationtreestwo pointers
2600386
2234CVessels, Heights and Two Versions (Easy Version)
dfs and similardsugreedyimplementationtwo pointers
120012k
2234FVessels, Heights and Two Versions (Hard Version)
data structuresdfs and similardsugreedyimplementationtwo pointers
19002.3k
2230FGame on Growing Tree
binary searchdfs and similardivide and conquerdpgamesimplementationtrees
2700510
2228C2Cirno and Number (Hard Version)
binary searchdfs and similardpgreedyimplementation
16006.1k
2193HRemove the Grail Tree
dfs and similardpgraphsgreedyimplementationtrees
24001.1k
2189FZhora the Vacuum Cleaner
data structuresdfs and similardpgreedyimplementationsortingstrees
2800254
2183D2Tree Coloring (Hard Version)
combinatoricsconstructive algorithmsdata structuresdfs and similargreedyimplementationtrees
21002.6k
2176ERemove at the lowest cost
data structuresdfs and similardpdsugreedyimplementationtrees
24001.3k
2134DSliding Tree
constructive algorithmsdfs and similargreedyimplementationtrees
23003.8k
2127H23 Rises Again
brute forcedfs and similardpflowsgraph matchingsgraphsgreedyimplementationprobabilitiestrees
31001.9k
2126F1-1-1, Free Tree!
brute forcedata structuresdfs and similargraphsimplementationtrees
20004.4k
2118D1Red Light, Green Light (Easy version)
brute forcedfs and similardpgraphsimplementationnumber theory
17008.6k
2118D2Red Light, Green Light (Hard version)
binary searchbrute forcedata structuresdfs and similardpgraphsimplementationmathnumber theory
22002.6k
2113EFrom Kazan with Love
dfs and similargraphsimplementationtrees
2800430
2110EMelody
dfs and similargraphsimplementation
23002.8k
2108ESpruce Dispute
constructive algorithmsdfs and similargraphsgreedyimplementationshortest pathstrees
2600922
2107DApple Tree Traversing
brute forcedfs and similargreedyimplementationtrees
21003.6k
2106G2Baudelaire (hard version)
binary searchdfs and similardivide and conquerimplementationinteractivetrees
2500647
2104FNumbers and Strings
binary searchbrute forcedfs and similardpimplementationmath
2600742
2103DLocal Construction
constructive algorithmsdfs and similarimplementationtwo pointers
20004.1k
2097BBaggage Claim
combinatoricsdfs and similardpdsugraphsimplementationmathtrees
23002k
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2063F2Counting Is Not Fun (Hard Version)
combinatoricsdata structuresdfs and similardsugraphsimplementationtrees
2700951
2062E2The Game (Hard Version)
data structuresdfs and similargamesgraphsimplementationtrees
3000464
2056BFind the Permutation
brute forcedfs and similargraphsimplementationsortings
130018.2k
2045MMirror Maze
brute forcedfs and similargraphsimplementation
18002.3k
2044G1Medium Demon Problem (easy version)
dfs and similargraph matchingsgraphsimplementationtrees
17007.6k
2044G2Medium Demon Problem (hard version)
dfs and similardpdsugraphsimplementationtrees
19004k
2043EMatrix Transformation
bitmasksbrute forcedata structuresdfs and similargraphsgreedyimplementation
23001.9k
2042EVertex Pairs
binary searchbrute forcedata structuresdfs and similardivide and conquergreedyimplementationtrees
2900535
2034CTrapped in the Witch's Labyrinth
constructive algorithmsdfs and similargraphsimplementation
14009.4k
2031DPenchick and Desert Rabbit
binary searchdata structuresdfs and similardpdsugreedyimplementationtwo pointers
170010.1k
2031EPenchick and Chloe's Trees
data structuresdfs and similardpgreedyimplementationmathsortingstrees
21002.8k
2026FBermart Ice Cream
data structuresdfs and similardivide and conquerdpimplementationtrees
2700413
2023CC+K+S
constructive algorithmsdfs and similargraphsgreedyhashingimplementationstrings
24001.4k
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2003D2Turtle and a MEX Problem (Hard Version)
dfs and similardpgraphsgreedyimplementationmath
21004.7k
1985H1Maximize the Largest Component (Easy Version)
brute forcedata structuresdfs and similardsugraphsimplementation
17007.4k
1985H2Maximize the Largest Component (Hard Version)
data structuresdfs and similardpdsuimplementation
22002k
1975EChain Queries
binary searchdata structuresdfs and similarimplementationtrees
21002.9k
1971FCircle Perimeter
binary searchbrute forcedfs and similargeometryimplementationmath
160012.7k
1967DLong Way to be Non-decreasing
binary searchdfs and similargraphsimplementationshortest pathstwo pointers
2800999
1955GGCD on a grid
brute forcedfs and similardpimplementationmathnumber theory
19006.1k
1950GShuffling Songs
bitmasksdfs and similardpgraphshashingimplementationstrings
19006.3k
1942DLearning to Paint
binary searchdata structuresdfs and similardpgreedyimplementationsortings
21003.4k
1941DRudolf and the Ball Game
dfs and similardpimplementation
120021.3k
1935FAndrey's Tree
binary searchconstructive algorithmsdata structuresdfs and similardsugreedyimplementationtrees
2800634
1927FMicrocycle
data structuresdfs and similardsugraphsgreedyimplementationsortingstrees
19005.6k
1926FVlad and Avoiding X
bitmasksbrute forcedfs and similardpimplementation
22002.1k
1926GVlad and Trouble at MIT
dfs and similardpflowsgraphsgreedyimplementationtrees
19004.7k
1918FCaterpillar on a Tree
dfs and similargraphsgreedyimplementationsortingstrees
25001.2k
1907GLights
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
22002.4k
1904ETree Queries
data structuresdfs and similargraphsimplementationtrees
25001.4k
1904FBeautiful Tree
data structuresdfs and similargraphsimplementationtrees
2800582
1902FTrees and XOR Queries Again
data structuresdfs and similardivide and conquergraphsimplementationmathtrees
24001.5k
1900ETransitive Graph
dfs and similardpdsugraphsimplementation
21002.7k
1893AAnonymous Informant
brute forcedfs and similargraphsimplementation
140015.3k
1889DGame of Stacks
brute forcedfs and similargraphsimplementationtrees
3000982
1879EInteractive Game with Coloring
brute forceconstructive algorithmsdfs and similargraphsimplementationinteractivetrees
24001.6k
1878Gwxhtzdy ORO Tree
binary searchbitmasksbrute forcedata structuresdfs and similarimplementationtrees
23001.5k
1872FSelling a Menagerie
dfs and similardsugraphsimplementationmath
18007.7k
1867DCyclic Operations
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
18006.9k
1861CQueries for the Array
data structuresdfs and similarimplementationstringstrees
160012.5k
1856E2PermuTree (hard version)
bitmasksdfs and similardpfftgreedyimplementationmathtrees
27001.8k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1844GTree Weights
bitmasksconstructive algorithmsdata structuresdfs and similarimplementationmathmatricesnumber theorytrees
30001.2k
1835FGood Graph
bitmasksdfs and similargraph matchingsgraphsimplementation
3500347
1833GKsyusha and Chinchilla
constructive algorithmsdfs and similardpdsugreedyimplementationtrees
18006.5k
1829DGold Rush
brute forcedfs and similardpimplementation
100035k
1829EThe Lakes
dfs and similardsugraphsimplementation
110027.7k
1811FIs It Flower?
dfs and similargraphsimplementation
21002.2k
1807FBouncy Ball
brute forcedfs and similarimplementation
17007.4k
1800GSymmetree
dfs and similarhashingimplementationtrees
22002.6k
1799ECity Union
constructive algorithmsdfs and similardsugeometrygreedyimplementationmath
23001.4k
1797DLi Hua and Tree
brute forcedata structuresdfs and similardpimplementationtrees
19004.7k
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1787DGame on Axis
combinatoricsdfs and similardsugraphsimplementation
19003.9k
1772FCopy of a Copy of a Copy
constructive algorithmsdfs and similargraphsimplementationsortings
20002.9k
1770DKoxia and Game
constructive algorithmsdata structuresdfs and similardsuflowsgamesgraph matchingsgraphsimplementation
20004.5k
1735CPhase Shift
dfs and similardsugraphsgreedyimplementationstrings
140011k
1722FL-shapes
dfs and similarimplementation
17008.1k
1670CWhere is the Pizza?
data structuresdfs and similardsugraphsimplementationmath
140011.1k
1669GFall Down
dfs and similarimplementation
120022.1k
1662FAntennas
data structuresdfs and similargraphsimplementationshortest paths
unrated1.3k
1662OCircular Maze
brute forcedfs and similargraphsimplementation
unrated1.6k
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
1646DWeight the Tree
constructive algorithmsdfs and similardpimplementationtrees
20004.5k
1623BGame on Ranges
brute forcedfs and similarimplementationsortings
110014.7k
1618FReverse
bitmasksconstructive algorithmsdfs and similarimplementationmathstrings
20004.8k
1617EChristmas Chocolates
dfs and similardpgamesgraphsimplementationmathnumber theoryshortest pathstrees
27001.1k
1607FRobot on the Board 2
brute forcedfs and similargraphsimplementation
23002.2k
1605DTreelabeling
bitmasksconstructive algorithmsdfs and similargamesgreedyimplementationtrees
21003.3k
1598AComputer Game
brute forcedfs and similardpimplementation
80025.9k
1598EStaircases
brute forcecombinatoricsdata structuresdfs and similardpimplementationmath
21002.5k
1593EGardener and Tree
brute forcedata structuresdfs and similargreedyimplementationtrees
160015.1k

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