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Problemset

302 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
2244CStepan and Permutation
constructive algorithmsdfs and similardsugreedymathnumber theorysortings
unrated15.6k
2244FAnya Loves Trees!
dfs and similardpgreedytrees
unrated3.5k
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
2232DMagical Tiered Cake
constructive algorithmsdfs and similardpgreedy
20002.7k
2228C2Cirno and Number (Hard Version)
binary searchdfs and similardpgreedyimplementation
16006.1k
2219CColoring a Red Black Tree
dfs and similardpgreedymathprobabilitiestrees
23001.4k
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
2189FZhora the Vacuum Cleaner
data structuresdfs and similardpgreedyimplementationsortingstrees
2800254
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2183D1Tree Coloring (Easy Version)
constructive algorithmsdfs and similargreedytrees
15009.3k
2183D2Tree Coloring (Hard Version)
combinatoricsconstructive algorithmsdata structuresdfs and similargreedyimplementationtrees
21002.6k
2176ERemove at the lowest cost
data structuresdfs and similardpdsugreedyimplementationtrees
24001.3k
2164EJourney
data structuresdfs and similardsugraphsgreedy
23003.6k
2157GIsaac's Queries
bitmasksbrute forceconstructive algorithmsdfs and similardivide and conquerdpgreedyinteractivemathprobabilities
2800672
2152H1Victorious Coloring (Easy Version)
dfs and similardpgreedy
29001.8k
2145FLong Journey
dfs and similardivide and conquerdpgraphsgreedymathmatricesnumber theory
25001.1k
2143CMax Tree
constructive algorithmsdfs and similargraphsgreedy
130014.9k
2134DSliding Tree
constructive algorithmsdfs and similargreedyimplementationtrees
23003.8k
2133EI Yearned For The Mines
constructive algorithmsdfs and similardpgreedytrees
25001.8k
2127EAncient Tree
constructive algorithmsdata structuresdfs and similardsugreedytrees
21004.4k
2127H23 Rises Again
brute forcedfs and similardpflowsgraph matchingsgraphsgreedyimplementationprobabilitiestrees
31001.9k
2119FVolcanic Eruptions
dfs and similardpgreedyshortest pathstrees
3300191
2115BGellyfish and Camellia Japonica
brute forceconstructive algorithmsdfs and similardpgraphsgreedytrees
21005k
2114EKirei Attacks the Estate
dfs and similardpgreedytrees
140014.4k
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
2107DApple Tree Traversing
brute forcedfs and similargreedyimplementationtrees
21003.6k
2106FGoblin
dfs and similardpdsugreedymath
19004.5k
2097EClearing the Snowdrift
data structuresdfs and similardpgreedy
3100287
2093GShorten the Array
binary searchbitmasksdata structuresdfs and similargreedystringstreestwo pointers
19004k
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2086EZebra-like Numbers
bitmasksbrute forceconstructive algorithmsdfs and similardpgreedymath
24001.7k
2071CTrapmigiano Reggiano
constructive algorithmsdata structuresdfs and similardpgreedysortingstrees
17009.9k
2067CDevyatkino
brute forcedfs and similargreedymath
150013k
2065FSkibidus and Slay
data structuresdfs and similargraphsgreedytrees
17007.3k
2063CRemove Exactly Two
brute forcedata structuresdfs and similardpgraphsgreedysortingstrees
160015.1k
2063ETriangle Tree
data structuresdfs and similardpgreedytrees
23002.4k
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
2042EVertex Pairs
binary searchbrute forcedata structuresdfs and similardivide and conquergreedyimplementationtrees
2900535
2040DNon Prime Tree
brute forceconstructive algorithmsdfs and similargreedynumber theorytreestwo pointers
19005.9k
2040EControl of Randomness
combinatoricsdfs and similardpgraphsgreedymathprobabilitiestrees
21002.8k
2033ESakurako, Kosuke, and the Permutation
brute forcedata structuresdfs and similardsugraphsgreedymath
140014.5k
2033GSakurako and Chefir
data structuresdfs and similardpgreedytrees
22002k
2031DPenchick and Desert Rabbit
binary searchdata structuresdfs and similardpdsugreedyimplementationtwo pointers
170010.1k
2031EPenchick and Chloe's Trees
data structuresdfs and similardpgreedyimplementationmathsortingstrees
21002.8k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2028EAlice's Adventures in the Rabbit Hole
combinatoricsdfs and similardpgamesgreedymathprobabilitiestrees
23002k
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
2018CTree Pruning
brute forcedfs and similargreedysortingstrees
170010.2k
2014FSheriff's Defense
dfs and similardpgreedytrees
20005.3k
2006AIris and Game on the Tree
constructive algorithmsdfs and similargamesgraphsgreedytrees
17009.8k
2003D2Turtle and a MEX Problem (Hard Version)
dfs and similardpgraphsgreedyimplementationmath
21004.7k
2001CGuess The Tree
binary searchbrute forcedfs and similardivide and conquerdsugreedyinteractivetrees
150013.1k
1997DMaximize the Root
binary searchdfs and similardpgreedytrees
150016.3k
1991EColoring Game
constructive algorithmsdfs and similargamesgraphsgreedyinteractive
19005.2k
1987EWonderful Tree!
brute forcedata structuresdfs and similardsugreedytrees
20004.2k
1980GYasya and the Mysterious Tree
bitmasksdata structuresdfs and similargraphsgreedystringstrees
23001.8k
1976ESplittable Permutations
combinatoricsdata structuresdfs and similargreedymathtrees
25001.3k
1976FRemove Bridges
data structuresdfs and similardpgreedysortingstrees
2800893
1975DPaint the Tree
brute forcedfs and similardpgreedyshortest pathstrees
17007.6k
1968DPermutation Game
brute forcedfs and similargamesgraphsgreedymath
130017.7k
1949CAnnual Ants' Gathering
dfs and similardpgreedytrees
19002.6k
1943CTree Compass
constructive algorithmsdfs and similargreedytrees
23002.7k
1942DLearning to Paint
binary searchdata structuresdfs and similardpgreedyimplementationsortings
21003.4k
1935FAndrey's Tree
binary searchconstructive algorithmsdata structuresdfs and similardsugreedyimplementationtrees
2800634
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
1916EHappy Life in University
data structuresdfs and similargreedytrees
23002.7k
1916FGroup Division
constructive algorithmsdfs and similargraphsgreedy
2900756
1914FProgramming Competition
dfs and similardpgraph matchingsgreedytrees
19005.1k
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
1882DTree XOR
bitmasksdfs and similardpgreedytrees
19007.3k
1876CAutosynthesis
constructive algorithmsdfs and similargraphsgreedysortings
21002.8k
1867DCyclic Operations
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementation
18006.9k
1867FMost Different Tree
brute forceconstructive algorithmsdfs and similargreedyhashing
2700554
1863ESpeedrun
brute forcedfs and similardpgraphsgreedymathsortingstwo pointers
21003.3k
1856E2PermuTree (hard version)
bitmasksdfs and similardpfftgreedyimplementationmathtrees
27001.8k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1847FThe Boss's Identity
binary searchbitmasksdata structuresdfs and similargreedymathsortings
25001.1k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1842FTenzing and Tree
dfs and similargreedyshortest pathssortingstrees
25001.9k
1839EDecreasing Game
constructive algorithmsdfs and similardpgreedyinteractive
24001.6k
1833GKsyusha and Chinchilla
constructive algorithmsdfs and similardpdsugreedyimplementationtrees
18006.5k

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