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Problemset

570 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
1926GVlad and Trouble at MIT
dfs and similardpflowsgraphsgreedyimplementationtrees
19004.7k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1920F1Smooth Sailing (Easy Version)
binary searchbrute forcedata structuresdfs and similardsugraphsshortest paths
25001.3k
1918FCaterpillar on a Tree
dfs and similargraphsgreedyimplementationsortingstrees
25001.2k
1916FGroup Division
constructive algorithmsdfs and similargraphsgreedy
2900756
1914G1Light Bulbs (Easy Version)
brute forcecombinatoricsdfs and similardpdsugraphsmathtrees
21002.5k
1914G2Light Bulbs (Hard Version)
combinatoricsdata structuresdfs and similardpgraphshashing
23001.9k
1907GLights
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
22002.4k
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
1900ETransitive Graph
dfs and similardpdsugraphsimplementation
21002.7k
1895EInfinite Card Game
binary searchbrute forcedata structuresdfs and similardpdsugamesgraphsgreedysortingstwo pointers
23001.9k
1893AAnonymous Informant
brute forcedfs and similargraphsimplementation
140015.3k
1893ECacti Symphony
combinatoricsdfs and similardpgraphs
3500342
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
1876CAutosynthesis
constructive algorithmsdfs and similargraphsgreedysortings
21002.8k
1876DLexichromatography
combinatoricsdfs and similardsugraphstwo pointers
25001.1k
1874BJellyfish and Math
bitmasksbrute forcedfs and similardpgraphsshortest paths
24001.4k
1873HMad City
dfs and similardsugamesgraphsshortest pathstrees
17009.7k
1872FSelling a Menagerie
dfs and similardsugraphsimplementationmath
18007.7k
1867DCyclic Operations
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
18006.9k
1866CCompletely Searching for Inversions
dfs and similardpgraphs
19003.5k
1863ESpeedrun
brute forcedfs and similardpgraphsgreedymathsortingstwo pointers
21003.3k
1860EFast Travel Text Editor
data structuresdfs and similargraphsshortest paths
24001.9k
1859FTeleportation in Byteland
data structuresdfs and similardivide and conquergraphsshortest pathstrees
3200582
1851ENastya and Potions
dfs and similardpgraphssortings
150013.6k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1844EGreat Grids
2-satconstructive algorithmsdfs and similardsugraphs
24002.2k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1840FRailguns
brute forcedfs and similardpgraphs
22002.2k
1835DDoctor's Brown Hypothesis
dfs and similargraphsmathnumber theory
2900707
1835FGood Graph
bitmasksdfs and similargraph matchingsgraphsimplementation
3500347
1833ERound Dance
dfs and similardsugraphsshortest paths
160019.5k
1830ACopil Copac Draws Trees
dfs and similardpgraphstrees
140021.3k
1829EThe Lakes
dfs and similardsugraphsimplementation
110027.7k
1829FForever Winter
dfs and similargraphsmath
130022.4k
1822FGardening Friends
brute forcedfs and similardpgraphstrees
17007.8k
1817BFish Graph
brute forceconstructive algorithmsdfs and similargraphs
19005.2k
1815CBetween
constructive algorithmsdfs and similargraphsgreedy
22002.4k
1811FIs It Flower?
dfs and similargraphsimplementation
21002.2k
1810EMonsters
brute forcedata structuresdfs and similardsugraphsgreedy
21004k
1805DA Wide, Wide Graph
dfs and similardpgraphsgreedytrees
18009.6k
1804ERouting
bitmasksbrute forcedfs and similardpgraphs
24001.7k
1800E2Unforgivable Curse (hard version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedystrings
150015.6k
1795GRemoval Sequences
bitmasksdfs and similargraphs
2700852
1790FTimofey and Black-White Tree
brute forcedfs and similardivide and conquergraphsgreedymathshortest pathstrees
21004.2k
1790GTokens on Graph
constructive algorithmsdfs and similargraphsshortest paths
23001.3k
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1787DGame on Axis
combinatoricsdfs and similardsugraphsimplementation
19003.9k
1783FDouble Sort II
dfs and similarflowsgraph matchingsgraphs
25001.4k
1778FMaximizing Root
dfs and similardpgraphsmathnumber theorytrees
2600964
1777EEdge Reverse
binary searchdfs and similargraphstrees
22002.4k
1775DFriendly Spiders
dfs and similargraphsmathnumber theoryshortest paths
18008.9k
1772FCopy of a Copy of a Copy
constructive algorithmsdfs and similargraphsimplementationsortings
20002.9k
1770DKoxia and Game
constructive algorithmsdata structuresdfs and similardsuflowsgamesgraph matchingsgraphsimplementation
20004.5k
1768DLucky Permutation
constructive algorithmsdfs and similargraphsgreedy
18009.3k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1761CSet Construction
constructive algorithmsdfs and similargraphsgreedy
140010.8k
1760GSlavicG's Favorite Problem
bitmasksdfs and similargraphs
170010.7k
1758ETick, Tock
combinatoricsdfs and similardsugraphs
25001.1k
1753DThe Beach
constructive algorithmsdfs and similargraphsshortest paths
24002.1k
1749ECactus Wall
constructive algorithmsdfs and similargraphsshortest paths
24002.1k
1741DMasha and a Beautiful Tree
dfs and similardivide and conquergraphssortingstrees
130018.7k
1741GKirill and Company
bitmasksbrute forcedfs and similardpflowsgraphsshortest paths
22002k
1739DReset K Edges
binary searchdata structuresdfs and similargraphsgreedytrees
19006.4k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1735CPhase Shift
dfs and similardsugraphsgreedyimplementationstrings
140011k
1726DEdge Split
brute forceconstructive algorithmsdfs and similardsugraphsprobabilitiestrees
20004.2k
1721FMatching Reduction
brute forceconstructive algorithmsdfs and similarflowsgraph matchingsgraphsinteractive
2800641
1707CDFS Trees
dfs and similardsugraphsgreedysortingstrees
24002k
1702ESplit Into Two Sets
dfs and similardsugraphs
160018.7k
1696FTree Recovery
brute forceconstructive algorithmsdfs and similardsugraphstrees
26001.2k
1695EAmbiguous Dominoes
constructive algorithmsdfs and similargraphs
2700543
1691ENumber of Groups
data structuresdfs and similardsugraphsgreedysortings
23002.2k
1689EANDfinity
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
25001.4k
1682EUnordered Swaps
constructive algorithmsdfs and similargraphsgreedymathsortingstrees
2700777
1680FLenient Vertex Cover
dfs and similardivide and conquerdsugraphstrees
2600979
1679DToss a Coin to Your Graph...
binary searchdfs and similardpgraphs
19006k
1677CTokitsukaze and Two Colorful Tapes
constructive algorithmsdfs and similargraphsgreedy
19004.1k
1676GWhite-Black Balanced Subtrees
dfs and similardpgraphstrees
130025.6k
1674GRemove Directed Edges
dfs and similardpgraphs
20003k
1672F2Checker for Array Shuffling
constructive algorithmsdfs and similargraphs
2800956
1670CWhere is the Pizza?
data structuresdfs and similardsugraphsimplementationmath
140011.1k
1666LLabyrinth
dfs and similargraphs
18003.7k
1662FAntennas
data structuresdfs and similargraphsimplementationshortest paths
unrated1.3k
1662OCircular Maze
brute forcedfs and similargraphsimplementation
unrated1.6k
1661BGetting Zero
bitmasksbrute forcedfs and similardpgraphsgreedyshortest paths
130021.1k
1659EAND-MEX Walk
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
22002k
1659FTree and Permutation Game
dfs and similargamesgraphstrees
3000255
1657FWords on Tree
2-satdfs and similardsugraphstrees
2600854
1654GSnowy Mountain
data structuresdfs and similargraphsgreedyshortest pathstrees
2900474
1651DNearest Excluded Points
binary searchdata structuresdfs and similargraphsshortest paths
19006.7k
1650GCounting Shortcuts
data structuresdfs and similardpgraphsshortest paths
21003k
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
1648FTwo Avenues
data structuresdfs and similargraphs
3500190

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