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Problemset

205 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
2249CDouble-Rift Dial
data structuresdfs and similardsuimplementationtwo pointers
unrated1k
2245ETom and Jerry
dfs and similardsugamestrees
unrated902
2244CStepan and Permutation
constructive algorithmsdfs and similardsugreedymathnumber theorysortings
unrated15.6k
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
2208D1Tree Orientation (Easy Version)
constructive algorithmsdfs and similardsugraphsgreedymatricestrees
18004.8k
2208D2Tree Orientation (Hard Version)
dfs and similardsugraphsgreedysortingstrees
22002.1k
2207GToothless
constructive algorithmsdfs and similardsu
3300185
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2176ERemove at the lowest cost
data structuresdfs and similardpdsugreedyimplementationtrees
24001.3k
2164EJourney
data structuresdfs and similardsugraphsgreedy
23003.6k
2155FJuan's Colorful Tree
data structuresdfs and similardsugraphsmeet-in-the-middletrees
2800745
2141HMerging Vertices in a Graph
*specialdfs and similardsugraphs
270085
2135CBy the Assignment
binary searchbitmaskscombinatoricsdfs and similardsugraphsmath
20005.4k
2127EAncient Tree
constructive algorithmsdata structuresdfs and similardsugreedytrees
21004.4k
2106FGoblin
dfs and similardpdsugreedymath
19004.5k
2097BBaggage Claim
combinatoricsdfs and similardpdsugraphsimplementationmathtrees
23002k
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2069FGraph Inclusion
data structuresdfs and similardivide and conquerdsugraphs
2800824
2068EPorto Vs. Benfica
data structuresdfs and similardsugraphsshortest paths
2800384
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2063F2Counting Is Not Fun (Hard Version)
combinatoricsdata structuresdfs and similardsugraphsimplementationtrees
2700951
2060EGraph Composition
dfs and similardsugraphsgreedy
150012.7k
2057E2Another Exercise on Graphs (hard version)
binary searchdfs and similardpdsugraphsshortest pathssortings
25002k
2056ENested Segments
combinatoricsdfs and similardpdsumath
25001.1k
2044G2Medium Demon Problem (hard version)
dfs and similardpdsugraphsimplementationtrees
19004k
2033ESakurako, Kosuke, and the Permutation
brute forcedata structuresdfs and similardsugraphsgreedymath
140014.5k
2031DPenchick and Desert Rabbit
binary searchdata structuresdfs and similardpdsugreedyimplementationtwo pointers
170010.1k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2022E1Billetes MX (Easy Version)
2-satbinary searchcombinatoricsconstructive algorithmsdfs and similardsugraphs
2500780
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2021E3Digital Village (Extreme Version)
data structuresdfs and similardpdsugraphsgreedymathtrees
2800725
2006BIris and the Tree
brute forcedata structuresdfs and similardsumathtrees
18004.4k
2001CGuess The Tree
binary searchbrute forcedfs and similardivide and conquerdsugreedyinteractivetrees
150013.1k
1987EWonderful Tree!
brute forcedata structuresdfs and similardsugreedytrees
20004.2k
1985H1Maximize the Largest Component (Easy Version)
brute forcedata structuresdfs and similardsugraphsimplementation
17007.4k
1985H2Maximize the Largest Component (Hard Version)
data structuresdfs and similardpdsuimplementation
22002k
1978FLarge Graph
data structuresdfs and similardsugraphsnumber theorytwo pointers
24001.6k
1940AParallel Universes
*specialconstructive algorithmsdfs and similardsugraphs
unrated106
1940CBurenka and Pether
*specialdata structuresdfs and similardivide and conquerdsugraphssortingstrees
unrated44
1935FAndrey's Tree
binary searchconstructive algorithmsdata structuresdfs and similardsugreedyimplementationtrees
2800634
1927FMicrocycle
data structuresdfs and similardsugraphsgreedyimplementationsortingstrees
19005.6k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1920F1Smooth Sailing (Easy Version)
binary searchbrute forcedata structuresdfs and similardsugraphsshortest paths
25001.3k
1914G1Light Bulbs (Easy Version)
brute forcecombinatoricsdfs and similardpdsugraphsmathtrees
21002.5k
1900ETransitive Graph
dfs and similardpdsugraphsimplementation
21002.7k
1899GUnusual Entertainment
data structuresdfs and similardsushortest pathssortingstreestwo pointers
19004.1k
1895EInfinite Card Game
binary searchbrute forcedata structuresdfs and similardpdsugamesgraphsgreedysortingstwo pointers
23001.9k
1876DLexichromatography
combinatoricsdfs and similardsugraphstwo pointers
25001.1k
1873HMad City
dfs and similardsugamesgraphsshortest pathstrees
17009.7k
1872FSelling a Menagerie
dfs and similardsugraphsimplementationmath
18007.7k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1844EGreat Grids
2-satconstructive algorithmsdfs and similardsugraphs
24002.2k
1833ERound Dance
dfs and similardsugraphsshortest paths
160019.5k
1833GKsyusha and Chinchilla
constructive algorithmsdfs and similardpdsugreedyimplementationtrees
18006.5k
1829EThe Lakes
dfs and similardsugraphsimplementation
110027.7k
1824CLuoTianyi and XOR-Tree
data structuresdfs and similardpdsugreedytrees
25001.7k
1810EMonsters
brute forcedata structuresdfs and similardsugraphsgreedy
21004k
1800E2Unforgivable Curse (hard version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedystrings
150015.6k
1799ECity Union
constructive algorithmsdfs and similardsugeometrygreedyimplementationmath
23001.4k
1797FLi Hua and Path
data structuresdfs and similardivide and conquerdsutrees
3000666
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1787DGame on Axis
combinatoricsdfs and similardsugraphsimplementation
19003.9k
1770DKoxia and Game
constructive algorithmsdata structuresdfs and similardsuflowsgamesgraph matchingsgraphsimplementation
20004.5k
1770EKoxia and Tree
combinatoricsdfs and similardpdsumathprobabilitiestrees
24001.6k
1764FDoremy's Experimental Tree
brute forceconstructive algorithmsdfs and similardsusortingstrees
25001.3k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1758ETick, Tock
combinatoricsdfs and similardsugraphs
25001.1k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1735CPhase Shift
dfs and similardsugraphsgreedyimplementationstrings
140011k
1726DEdge Split
brute forceconstructive algorithmsdfs and similardsugraphsprobabilitiestrees
20004.2k
1709EXOR Tree
bitmasksdata structuresdfs and similardsugreedytrees
24004.2k
1707CDFS Trees
dfs and similardsugraphsgreedysortingstrees
24002k
1706EQpwoeirut and Vertices
binary searchdata structuresdfs and similardivide and conquerdsugreedytrees
23004k
1702ESplit Into Two Sets
dfs and similardsugraphs
160018.7k
1696FTree Recovery
brute forceconstructive algorithmsdfs and similardsugraphstrees
26001.2k
1691ENumber of Groups
data structuresdfs and similardsugraphsgreedysortings
23002.2k
1689EANDfinity
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
25001.4k
1685D1Permutation Weight (Easy Version)
constructive algorithmsdfs and similardsu
2800535
1681FUnique Occurrences
data structuresdfs and similardivide and conquerdpdsutrees
23002.4k
1680FLenient Vertex Cover
dfs and similardivide and conquerdsugraphstrees
2600979
1670CWhere is the Pizza?
data structuresdfs and similardsugraphsimplementationmath
140011.1k
1659EAND-MEX Walk
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
22002k
1657FWords on Tree
2-satdfs and similardsugraphstrees
2600854
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
1635ECars
2-satconstructive algorithmsdfs and similardsugraphsgreedysortings
22002.9k
1633ESpanning Tree Queries
binary searchdata structuresdfs and similardsugraphsgreedymathsortingstrees
24001.8k
1624GMinOr Tree
bitmasksdfs and similardsugraphsgreedy
19007.9k
1619GUnusual Minesweeper
binary searchdfs and similardsugreedysortings
20002.8k
1615DX(or)-mas Tree
bitmasksdfs and similardsugraphstrees
22002.2k
1594DThe Number of Imposters
constructive algorithmsdfs and similardpdsugraphs
17009.8k
1574FOccurrences
combinatoricsdfs and similardpdsufftgraphs
2700786
1567FOne-Four Overload
2-satconstructive algorithmsdfs and similardsugraphsimplementation
2700888
1559D2Mocha and Diana (Hard Version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedytreestwo pointers
25003.2k
1553EPermutation Shift
brute forcecombinatoricsconstructive algorithmsdfs and similardsugraphsmath
21003.8k
1537FFigure Fixing
constructive algorithmsdfs and similardsugraphsgreedymath
22002.9k
1521DNastia Plays with a Tree
constructive algorithmsdata structuresdfs and similardpdsugreedyimplementationtrees
25002.4k
1515FPhoenix and Earthquake
constructive algorithmsdfs and similardsugraphsgreedytrees
26002.2k
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1494DDogeforces
constructive algorithmsdata structuresdfs and similardivide and conquerdsugreedysortingstrees
23002.9k

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