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Problemset

150 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
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
2192ESwap to Rearrange
constructive algorithmsdfs and similargraph matchingsgraphsgreedystrings
21002.3k
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2164EJourney
data structuresdfs and similardsugraphsgreedy
23003.6k
2145FLong Journey
dfs and similardivide and conquerdpgraphsgreedymathmatricesnumber theory
25001.1k
2143CMax Tree
constructive algorithmsdfs and similargraphsgreedy
130014.9k
2127H23 Rises Again
brute forcedfs and similardpflowsgraph matchingsgraphsgreedyimplementationprobabilitiestrees
31001.9k
2115BGellyfish and Camellia Japonica
brute forceconstructive algorithmsdfs and similardpgraphsgreedytrees
21005k
2110DFewer Batteries
binary searchdfs and similardpgraphsgreedyhashing
17008.8k
2109DD/D/D
dfs and similargraphsgreedyshortest paths
19005.8k
2108ESpruce Dispute
constructive algorithmsdfs and similargraphsgreedyimplementationshortest pathstrees
2600922
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2065FSkibidus and Slay
data structuresdfs and similargraphsgreedytrees
17007.3k
2063CRemove Exactly Two
brute forcedata structuresdfs and similardpgraphsgreedysortingstrees
160015.1k
2062DBalanced Tree
dfs and similardpgraphsgreedytrees
22003.6k
2062E1The Game (Easy Version)
data structuresdfs and similargamesgraphsgreedytrees
20004.4k
2060EGraph Composition
dfs and similardsugraphsgreedy
150012.7k
2053EResourceful Caterpillar Sequence
dfs and similardpgamesgraphsgreedytrees
19004.6k
2043EMatrix Transformation
bitmasksbrute forcedata structuresdfs and similargraphsgreedyimplementation
23001.9k
2040EControl of Randomness
combinatoricsdfs and similardpgraphsgreedymathprobabilitiestrees
21002.8k
2033ESakurako, Kosuke, and the Permutation
brute forcedata structuresdfs and similardsugraphsgreedymath
140014.5k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2027CAdd Zeros
brute forcedata structuresdfs and similardpgraphsgreedy
150014.1k
2025FChoose Your Queries
constructive algorithmsdfs and similardpgraphsgreedytrees
27001.1k
2023CC+K+S
constructive algorithmsdfs and similargraphsgreedyhashingimplementationstrings
24001.4k
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
2003D2Turtle and a MEX Problem (Hard Version)
dfs and similardpgraphsgreedyimplementationmath
21004.7k
1991EColoring Game
constructive algorithmsdfs and similargamesgraphsgreedyinteractive
19005.2k
1980GYasya and the Mysterious Tree
bitmasksdata structuresdfs and similargraphsgreedystringstrees
23001.8k
1968DPermutation Game
brute forcedfs and similargamesgraphsgreedymath
130017.7k
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
1918FCaterpillar on a Tree
dfs and similargraphsgreedyimplementationsortingstrees
25001.2k
1916FGroup Division
constructive algorithmsdfs and similargraphsgreedy
2900756
1907GLights
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
22002.4k
1901ECompressed Tree
dfs and similardpgraphsgreedysortingstrees
22002k
1895EInfinite Card Game
binary searchbrute forcedata structuresdfs and similardpdsugamesgraphsgreedysortingstwo pointers
23001.9k
1876CAutosynthesis
constructive algorithmsdfs and similargraphsgreedysortings
21002.8k
1867DCyclic Operations
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
18006.9k
1863ESpeedrun
brute forcedfs and similardpgraphsgreedymathsortingstwo pointers
21003.3k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1815CBetween
constructive algorithmsdfs and similargraphsgreedy
22002.4k
1810EMonsters
brute forcedata structuresdfs and similardsugraphsgreedy
21004k
1805DA Wide, Wide Graph
dfs and similardpgraphsgreedytrees
18009.6k
1800E2Unforgivable Curse (hard version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedystrings
150015.6k
1790FTimofey and Black-White Tree
brute forcedfs and similardivide and conquergraphsgreedymathshortest pathstrees
21004.2k
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1768DLucky Permutation
constructive algorithmsdfs and similargraphsgreedy
18009.3k
1761CSet Construction
constructive algorithmsdfs and similargraphsgreedy
140010.8k
1739DReset K Edges
binary searchdata structuresdfs and similargraphsgreedytrees
19006.4k
1735CPhase Shift
dfs and similardsugraphsgreedyimplementationstrings
140011k
1707CDFS Trees
dfs and similardsugraphsgreedysortingstrees
24002k
1691ENumber of Groups
data structuresdfs and similardsugraphsgreedysortings
23002.2k
1682EUnordered Swaps
constructive algorithmsdfs and similargraphsgreedymathsortingstrees
2700777
1677CTokitsukaze and Two Colorful Tapes
constructive algorithmsdfs and similargraphsgreedy
19004.1k
1661BGetting Zero
bitmasksbrute forcedfs and similardpgraphsgreedyshortest paths
130021.1k
1654GSnowy Mountain
data structuresdfs and similargraphsgreedyshortest pathstrees
2900474
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
1615EPurple Crayon
data structuresdfs and similargamesgraphsgreedymathsortingstrees
24001.8k
1608CGame Master
data structuresdfs and similardpgraphsgreedytwo pointers
17007.4k
1583EMoment of Bloom
constructive algorithmsdfs and similargraph matchingsgraphsgreedytrees
22002.5k
1574DThe Strongest Build
binary searchbrute forcedata structuresdfs and similargraphsgreedyhashingimplementation
20004.9k
1559D2Mocha and Diana (Hard Version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedytreestwo pointers
25003.2k
1558EDown Below
binary searchdfs and similargraphsgreedymeet-in-the-middleshortest paths
3000726
1549BGregor and the Pawn Game
dfs and similardpflowsgraph matchingsgraphsgreedyimplementation
80027.2k
1537FFigure Fixing
constructive algorithmsdfs and similardsugraphsgreedymath
22002.9k
1534F1Falling Sand (Easy Version)
dfs and similargraphsgreedy
25001.5k
1534F2Falling Sand (Hard Version)
dfs and similardpgraphsgreedy
3000790
1520GTo Go Or Not To Go?
brute forcedfs and similargraphsgreedyimplementationshortest paths
22004.4k
1515FPhoenix and Earthquake
constructive algorithmsdfs and similardsugraphsgreedytrees
26002.2k
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1487CMinimum Ties
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementationmath
150015.6k
1470DStrange Housing
constructive algorithmsdfs and similargraph matchingsgraphsgreedy
22004.3k
1466FEuclid's nightmare
bitmasksdfs and similardsugraphsgreedymathsortings
21003.1k
1442CGraph Transpositions
dfs and similargraphsgreedyshortest paths
24002k
1436DBandit in a City
binary searchdfs and similargraphsgreedytrees
19006.6k
1407EEgor in the Republic of Dagestan
constructive algorithmsdfs and similardpgraphsgreedyshortest paths
25002k
1391EPairs of Pairs
constructive algorithmsdfs and similargraphsgreedytrees
26002.1k
1388DCaptain Flint and Treasure
data structuresdfs and similargraphsgreedyimplementationtrees
20007k
1367ENecklace Assembly
brute forcedfs and similardpgraphsgreedynumber theory
19005.9k
1365DSolve The Maze
constructive algorithmsdfs and similardsugraphsgreedyimplementationshortest paths
170021.3k
1364DEhab's Last Corollary
constructive algorithmsdfs and similargraphsgreedyimplementationtrees
21005.1k
1348FPhoenix and Memory
data structuresdfs and similargraphsgreedy
2600968
1335FRobots on a Grid
data structuresdfs and similardsugraphsgreedymatrices
22002.5k
1325FEhab's Last Theorem
constructive algorithmsdfs and similargraphsgreedy
25002.4k
1307DCow and Fields
binary searchdata structuresdfs and similargraphsgreedyshortest pathssortings
19007.4k
1286BNumbers on Tree
constructive algorithmsdata structuresdfs and similargraphsgreedytrees
18005.7k
1280CJeremy Bearimy
dfs and similargraphsgreedytrees
20003.1k
1253DHarmonious Graph
constructive algorithmsdfs and similardsugraphsgreedysortings
170010.4k
1250NWires
dfs and similargraphsgreedy
20001.8k
1220ETourism
dfs and similardpdsugraphsgreedytrees
22003.1k
1213FUnstable String Sort
data structuresdfs and similardsugraphsgreedyimplementationstrings
21003.1k

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