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137 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
2196C1Interactive Graph (Simple Version)
binary searchcombinatoricsdfs and similardpgraphsinteractive
18003.9k
2196C2Interactive Graph (Hard Version)
combinatoricsdfs and similardpgraphsinteractive
20002.7k
2193HRemove the Grail Tree
dfs and similardpgraphsgreedyimplementationtrees
24001.1k
2184CHuge Pile
binary searchdfs and similardpgraphsmath
110023k
2184FCherry Tree
dfs and similardpgraphstrees
19004.2k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900648
2145FLong Journey
dfs and similardivide and conquerdpgraphsgreedymathmatricesnumber theory
25001.1k
2138C1Maple and Tree Beauty (Easy Version)
brute forcedfs and similardpgraphstrees
18005.7k
2137GCry Me a River
dfs and similardpgamesgraphs
22002k
2127H23 Rises Again
brute forcedfs and similardpflowsgraph matchingsgraphsgreedyimplementationprobabilitiestrees
31001.9k
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
2115BGellyfish and Camellia Japonica
brute forceconstructive algorithmsdfs and similardpgraphsgreedytrees
21005k
2112ETree Colorings
combinatoricsdfs and similardpgraphsmathnumber theorytrees
22003.5k
2110DFewer Batteries
binary searchdfs and similardpgraphsgreedyhashing
17008.8k
2097BBaggage Claim
combinatoricsdfs and similardpdsugraphsimplementationmathtrees
23002k
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2063CRemove Exactly Two
brute forcedata structuresdfs and similardpgraphsgreedysortingstrees
160015.1k
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2062DBalanced Tree
dfs and similardpgraphsgreedytrees
22003.6k
2057E2Another Exercise on Graphs (hard version)
binary searchdfs and similardpdsugraphsshortest pathssortings
25002k
2053EResourceful Caterpillar Sequence
dfs and similardpgamesgraphsgreedytrees
19004.6k
2044G2Medium Demon Problem (hard version)
dfs and similardpdsugraphsimplementationtrees
19004k
2040EControl of Randomness
combinatoricsdfs and similardpgraphsgreedymathprobabilitiestrees
21002.8k
2027CAdd Zeros
brute forcedata structuresdfs and similardpgraphsgreedy
150014.1k
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
2003D2Turtle and a MEX Problem (Hard Version)
dfs and similardpgraphsgreedyimplementationmath
21004.7k
1970G2Min-Fund Prison (Medium)
brute forcedfs and similardpgraphstrees
2200907
1970G3Min-Fund Prison (Hard)
bitmasksdfs and similardpgraphstrees
2400574
1950GShuffling Songs
bitmasksdfs and similardpgraphshashingimplementationstrings
19006.3k
1948CArrow Path
brute forceconstructive algorithmsdfs and similardpgraphsshortest paths
130021.5k
1933FTurtle Mission: Robot and the Earthquake
dfs and similardpgraphsshortest paths
21003k
1929ESasha and the Happy Tree Cutting
bitmasksbrute forcedfs and similardpgraphsgreedymathtrees
23002.1k
1926GVlad and Trouble at MIT
dfs and similardpflowsgraphsgreedyimplementationtrees
19004.7k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1914G1Light Bulbs (Easy Version)
brute forcecombinatoricsdfs and similardpdsugraphsmathtrees
21002.5k
1914G2Light Bulbs (Hard Version)
combinatoricsdata structuresdfs and similardpgraphshashing
23001.9k
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
1893ECacti Symphony
combinatoricsdfs and similardpgraphs
3500342
1881FMinimum Maximum Distance
dfs and similardpgraphsshortest pathstrees
17009.8k
1874BJellyfish and Math
bitmasksbrute forcedfs and similardpgraphsshortest paths
24001.4k
1866CCompletely Searching for Inversions
dfs and similardpgraphs
19003.5k
1863ESpeedrun
brute forcedfs and similardpgraphsgreedymathsortingstwo pointers
21003.3k
1851ENastya and Potions
dfs and similardpgraphssortings
150013.6k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1840FRailguns
brute forcedfs and similardpgraphs
22002.2k
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
1804ERouting
bitmasksbrute forcedfs and similardpgraphs
24001.7k
1778FMaximizing Root
dfs and similardpgraphsmathnumber theorytrees
2600964
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1741GKirill and Company
bitmasksbrute forcedfs and similardpflowsgraphsshortest paths
22002k
1679DToss a Coin to Your Graph...
binary searchdfs and similardpgraphs
19006k
1676GWhite-Black Balanced Subtrees
dfs and similardpgraphstrees
130025.6k
1674GRemove Directed Edges
dfs and similardpgraphs
20003k
1661BGetting Zero
bitmasksbrute forcedfs and similardpgraphsgreedyshortest paths
130021.1k
1650GCounting Shortcuts
data structuresdfs and similardpgraphsshortest paths
21003k
1625E1Cats on the Upgrade (easy version)
brute forcedata structuresdfs and similardivide and conquerdpgraphstrees
25001.2k
1617EChristmas Chocolates
dfs and similardpgamesgraphsimplementationmathnumber theoryshortest pathstrees
27001.1k
1616GJust Add an Edge
dfs and similardpgraphs
3500462
1608CGame Master
data structuresdfs and similardpgraphsgreedytwo pointers
17007.4k
1601BFrog Traveler
data structuresdfs and similardpgraphsshortest pathstwo pointers
19005.6k
1594DThe Number of Imposters
constructive algorithmsdfs and similardpdsugraphs
17009.8k
1592CBakry and Partitioning
bitmasksconstructive algorithmsdfs and similardpgraphstrees
17009.3k
1574FOccurrences
combinatoricsdfs and similardpdsufftgraphs
2700786
1569FPalindromic Hamiltonian Path
brute forcedfs and similardpgraphshashing
3000493
1552DArray Differentiation
bitmasksbrute forceconstructive algorithmsdfs and similardpgraphsmath
18008k
1549BGregor and the Pawn Game
dfs and similardpflowsgraph matchingsgraphsgreedyimplementation
80027.2k
1547GHow Many Paths?
dfs and similardpgraphstrees
21003.7k
1534F2Falling Sand (Hard Version)
dfs and similardpgraphsgreedy
3000790
1498DBananas in a Microwave
dfs and similardpgraphsimplementation
22002.5k
1472GMoving to the Capital
dfs and similardpgraphsshortest paths
21005.8k
1430GYet Another DAG Problem
bitmasksdfs and similardpflowsgraphsmath
2600949
1407EEgor in the Republic of Dagestan
constructive algorithmsdfs and similardpgraphsgreedyshortest paths
25002k
1402CStar Trek
*specialcombinatoricsdfs and similardpgamesgraphsmatricestrees
2600271
1389GDirecting Edges
dfs and similardpgraphstrees
2800540
1367ENecklace Assembly
brute forcedfs and similardpgraphsgreedynumber theory
19005.9k
1354EGraph Coloring
dfs and similardpgraphs
21003.8k
1344CQuantifier Question
dfs and similardpgraphsmath
26002k
1340CNastya and Unexpected Guest
dfs and similardpgraphsshortest paths
24002.5k
1324FMaximum White Subtree
dfs and similardpgraphstrees
180013.6k
1299DAround the World
bitmaskscombinatoricsdfs and similardpgraphsmathtrees
3000652
1263FEconomic Difficulties
data structuresdfs and similardpflowsgraphstrees
2400982
1242CSum Balance
bitmasksdfs and similardpgraphs
24002k
1238FThe Maximum Subtree
dfs and similardpgraphstrees
22002.2k
1220ETourism
dfs and similardpdsugraphsgreedytrees
22003.1k
1200FGraph Traveler
brute forcedata structuresdfs and similardpgraphsimplementationmathnumber theory
23001.2k
1131DGourmet choice
dfs and similardpdsugraphsgreedy
20003.7k
1120DPower Tree
dfs and similardpdsugraphsgreedytrees
25001.8k
1111ETree
data structuresdfs and similardpgraphstrees
25001.2k
1056DDecorate Apple Tree
constructive algorithmsdfs and similardpgraphsgreedysortingstrees
16006.8k
1038EMaximum Matching
bitmasksbrute forcedfs and similardpgraphs
24001.1k
982CCut 'em all!
dfs and similardpgraphsgreedytrees
150016.6k
936BSleepy Game
dfs and similardpgamesgraphs
21003.5k
919DSubstring
dfs and similardpgraphs
170012.7k

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