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212 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
2222GStatistics on Tree
binary searchbrute forcedfs and similardivide and conquergraphstrees
3100215
2208D1Tree Orientation (Easy Version)
constructive algorithmsdfs and similardsugraphsgreedymatricestrees
18004.8k
2208D2Tree Orientation (Hard Version)
dfs and similardsugraphsgreedysortingstrees
22002.1k
2193HRemove the Grail Tree
dfs and similardpgraphsgreedyimplementationtrees
24001.1k
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2184FCherry Tree
dfs and similardpgraphstrees
19004.2k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900648
2155FJuan's Colorful Tree
data structuresdfs and similardsugraphsmeet-in-the-middletrees
2800745
2154DCatshock
constructive algorithmsdfs and similargraphstreestwo pointers
19005k
2138C1Maple and Tree Beauty (Easy Version)
brute forcedfs and similardpgraphstrees
18005.7k
2127DRoot was Built by Love, Broken by Destiny
combinatoricsdfs and similargraphstrees
18007.5k
2127H23 Rises Again
brute forcedfs and similardpflowsgraph matchingsgraphsgreedyimplementationprobabilitiestrees
31001.9k
2126F1-1-1, Free Tree!
brute forcedata structuresdfs and similargraphsimplementationtrees
20004.4k
2115BGellyfish and Camellia Japonica
brute forceconstructive algorithmsdfs and similardpgraphsgreedytrees
21005k
2113EFrom Kazan with Love
dfs and similargraphsimplementationtrees
2800430
2112DReachability and Tree
constructive algorithmsdfs and similargraphstrees
17009.8k
2112ETree Colorings
combinatoricsdfs and similardpgraphsmathnumber theorytrees
22003.5k
2108ESpruce Dispute
constructive algorithmsdfs and similargraphsgreedyimplementationshortest pathstrees
2600922
2097BBaggage Claim
combinatoricsdfs and similardpdsugraphsimplementationmathtrees
23002k
2065FSkibidus and Slay
data structuresdfs and similargraphsgreedytrees
17007.3k
2063CRemove Exactly Two
brute forcedata structuresdfs and similardpgraphsgreedysortingstrees
160015.1k
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2063F2Counting Is Not Fun (Hard Version)
combinatoricsdata structuresdfs and similardsugraphsimplementationtrees
2700951
2062DBalanced Tree
dfs and similardpgraphsgreedytrees
22003.6k
2062E1The Game (Easy Version)
data structuresdfs and similargamesgraphsgreedytrees
20004.4k
2062E2The Game (Hard Version)
data structuresdfs and similargamesgraphsimplementationtrees
3000464
2053EResourceful Caterpillar Sequence
dfs and similardpgamesgraphsgreedytrees
19004.6k
2044G1Medium Demon Problem (easy version)
dfs and similargraph matchingsgraphsimplementationtrees
17007.6k
2044G2Medium Demon Problem (hard version)
dfs and similardpdsugraphsimplementationtrees
19004k
2040EControl of Randomness
combinatoricsdfs and similardpgraphsgreedymathprobabilitiestrees
21002.8k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2025FChoose Your Queries
constructive algorithmsdfs and similardpgraphsgreedytrees
27001.1k
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2021E3Digital Village (Extreme Version)
data structuresdfs and similardpdsugraphsgreedymathtrees
2800725
2006AIris and Game on the Tree
constructive algorithmsdfs and similargamesgraphsgreedytrees
17009.8k
2002D1DFS Checker (Easy Version)
brute forcedata structuresdfs and similargraphshashingtrees
19005.2k
2002D2DFS Checker (Hard Version)
binary searchdata structuresdfs and similargraphshashingtrees
23002.9k
1994FStardew Valley
constructive algorithmsdfs and similargraphstrees
25001.6k
1986FNon-academic Problem
dfs and similargraphstrees
19006.7k
1980GYasya and the Mysterious Tree
bitmasksdata structuresdfs and similargraphsgreedystringstrees
23001.8k
1970G2Min-Fund Prison (Medium)
brute forcedfs and similardpgraphstrees
2200907
1970G3Min-Fund Prison (Hard)
bitmasksdfs and similardpgraphstrees
2400574
1940CBurenka and Pether
*specialdata structuresdfs and similardivide and conquerdsugraphssortingstrees
unrated44
1939BEvidence Board
*specialconstructive algorithmsdfs and similargraphstrees
unrated308
1929ESasha and the Happy Tree Cutting
bitmasksbrute forcedfs and similardpgraphsgreedymathtrees
23002.1k
1927FMicrocycle
data structuresdfs and similardsugraphsgreedyimplementationsortingstrees
19005.6k
1926GVlad and Trouble at MIT
dfs and similardpflowsgraphsgreedyimplementationtrees
19004.7k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1918FCaterpillar on a Tree
dfs and similargraphsgreedyimplementationsortingstrees
25001.2k
1914G1Light Bulbs (Easy Version)
brute forcecombinatoricsdfs and similardpdsugraphsmathtrees
21002.5k
1904ETree Queries
data structuresdfs and similargraphsimplementationtrees
25001.4k
1904FBeautiful Tree
data structuresdfs and similargraphsimplementationtrees
2800581
1902FTrees and XOR Queries Again
data structuresdfs and similardivide and conquergraphsimplementationmathtrees
24001.5k
1901ECompressed Tree
dfs and similardpgraphsgreedysortingstrees
22002k
1889DGame of Stacks
brute forcedfs and similargraphsimplementationtrees
3000982
1889EDoremy's Swapping Trees
dfs and similargraphstrees
3500184
1881FMinimum Maximum Distance
dfs and similardpgraphsshortest pathstrees
17009.8k
1879EInteractive Game with Coloring
brute forceconstructive algorithmsdfs and similargraphsimplementationinteractivetrees
24001.6k
1873HMad City
dfs and similardsugamesgraphsshortest pathstrees
17009.7k
1859FTeleportation in Byteland
data structuresdfs and similardivide and conquergraphsshortest pathstrees
3200582
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1830ACopil Copac Draws Trees
dfs and similardpgraphstrees
140021.3k
1822FGardening Friends
brute forcedfs and similardpgraphstrees
17007.8k
1805DA Wide, Wide Graph
dfs and similardpgraphsgreedytrees
18009.6k
1790FTimofey and Black-White Tree
brute forcedfs and similardivide and conquergraphsgreedymathshortest pathstrees
21004.2k
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1778FMaximizing Root
dfs and similardpgraphsmathnumber theorytrees
2600964
1777EEdge Reverse
binary searchdfs and similargraphstrees
22002.4k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1741DMasha and a Beautiful Tree
dfs and similardivide and conquergraphssortingstrees
130018.7k
1739DReset K Edges
binary searchdata structuresdfs and similargraphsgreedytrees
19006.4k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1726DEdge Split
brute forceconstructive algorithmsdfs and similardsugraphsprobabilitiestrees
20004.2k
1707CDFS Trees
dfs and similardsugraphsgreedysortingstrees
24002k
1696FTree Recovery
brute forceconstructive algorithmsdfs and similardsugraphstrees
26001.2k
1682EUnordered Swaps
constructive algorithmsdfs and similargraphsgreedymathsortingstrees
2700777
1680FLenient Vertex Cover
dfs and similardivide and conquerdsugraphstrees
2600979
1676GWhite-Black Balanced Subtrees
dfs and similardpgraphstrees
130025.6k
1659FTree and Permutation Game
dfs and similargamesgraphstrees
3000255
1657FWords on Tree
2-satdfs and similardsugraphstrees
2600854
1654GSnowy Mountain
data structuresdfs and similargraphsgreedyshortest pathstrees
2900474
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
1633ESpanning Tree Queries
binary searchdata structuresdfs and similardsugraphsgreedymathsortingstrees
24001.8k
1632E1Distance Tree (easy version)
binary searchdata structuresdfs and similargraphsshortest pathstrees
24001.4k
1625E1Cats on the Upgrade (easy version)
brute forcedata structuresdfs and similardivide and conquerdpgraphstrees
25001.2k
1625E2Cats on the Upgrade (hard version)
binary searchdata structuresdfs and similargraphstrees
2800705
1621HTrains and Airplanes
dfs and similargraphsshortest pathstrees
3500267
1617EChristmas Chocolates
dfs and similardpgamesgraphsimplementationmathnumber theoryshortest pathstrees
27001.1k
1615DX(or)-mas Tree
bitmasksdfs and similardsugraphstrees
22002.2k
1615EPurple Crayon
data structuresdfs and similargamesgraphsgreedymathsortingstrees
24001.8k
1592CBakry and Partitioning
bitmasksconstructive algorithmsdfs and similardpgraphstrees
17009.3k
1583EMoment of Bloom
constructive algorithmsdfs and similargraph matchingsgraphsgreedytrees
22002.5k
1559D2Mocha and Diana (Hard Version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedytreestwo pointers
25003.2k
1547GHow Many Paths?
dfs and similardpgraphstrees
21003.7k
1519EOff by One
constructive algorithmsdfs and similargeometrygraphssortingstrees
2700943
1515FPhoenix and Earthquake
constructive algorithmsdfs and similardsugraphsgreedytrees
26002.2k
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1495DBFS Trees
combinatoricsdfs and similargraphsmathshortest pathstrees
26001.6k
1463EPlan of Lectures
constructive algorithmsdfs and similardsugraphsimplementationsortingstrees
24001.8k
1454ENumber of Simple Paths
combinatoricsdfs and similargraphstrees
20006.8k

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