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Problemset

225 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
2249CDouble-Rift Dial
data structuresdfs and similardsuimplementationtwo pointers
unrated1.1k
2236GCriterion in Burlandia
binary searchbitmasksbrute forcedata structuresdfs and similardivide and conquerimplementationtreestwo pointers
2600386
2234FVessels, Heights and Two Versions (Hard Version)
data structuresdfs and similardsugreedyimplementationtwo pointers
19002.3k
2194F2Again Trees... (hard version)
bitmasksdata structuresdfs and similardpffttrees
3000223
2189FZhora the Vacuum Cleaner
data structuresdfs and similardpgreedyimplementationsortingstrees
2800254
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2183D2Tree Coloring (Hard Version)
combinatoricsconstructive algorithmsdata structuresdfs and similargreedyimplementationtrees
21002.6k
2182GShort Garland
combinatoricsdata structuresdfs and similardptrees
2800383
2176ERemove at the lowest cost
data structuresdfs and similardpdsugreedyimplementationtrees
24001.3k
2164EJourney
data structuresdfs and similardsugraphsgreedy
23003.6k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900662
2155FJuan's Colorful Tree
data structuresdfs and similardsugraphsmeet-in-the-middletrees
2800746
2131GWafu!
bitmasksbrute forcedata structuresdfs and similardpmath
20003.9k
2127EAncient Tree
constructive algorithmsdata structuresdfs and similardsugreedytrees
21004.4k
2126F1-1-1, Free Tree!
brute forcedata structuresdfs and similargraphsimplementationtrees
20004.4k
2118D2Red Light, Green Light (Hard version)
binary searchbrute forcedata structuresdfs and similardpgraphsimplementationmathnumber theory
22002.6k
2097EClearing the Snowdrift
data structuresdfs and similardpgreedy
3100287
2093GShorten the Array
binary searchbitmasksdata structuresdfs and similargreedystringstreestwo pointers
19004k
2071CTrapmigiano Reggiano
constructive algorithmsdata structuresdfs and similardpgreedysortingstrees
17009.9k
2069FGraph Inclusion
data structuresdfs and similardivide and conquerdsugraphs
2800824
2068EPorto Vs. Benfica
data structuresdfs and similardsugraphsshortest paths
2800384
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
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2063F2Counting Is Not Fun (Hard Version)
combinatoricsdata structuresdfs and similardsugraphsimplementationtrees
2700951
2062E1The Game (Easy Version)
data structuresdfs and similargamesgraphsgreedytrees
20004.4k
2062E2The Game (Hard Version)
data structuresdfs and similargamesgraphsimplementationtrees
3000464
2043EMatrix Transformation
bitmasksbrute forcedata structuresdfs and similargraphsgreedyimplementation
23001.9k
2042EVertex Pairs
binary searchbrute forcedata structuresdfs and similardivide and conquergreedyimplementationtrees
2900535
2033ESakurako, Kosuke, and the Permutation
brute forcedata structuresdfs and similardsugraphsgreedymath
140014.6k
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
2027CAdd Zeros
brute forcedata structuresdfs and similardpgraphsgreedy
150014.2k
2026FBermart Ice Cream
data structuresdfs and similardivide and conquerdpimplementationtrees
2700413
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2021E3Digital Village (Extreme Version)
data structuresdfs and similardpdsugraphsgreedymathtrees
2800725
2006BIris and the Tree
brute forcedata structuresdfs and similardsumathtrees
18004.4k
2006EIris's Full Binary Tree
brute forcedata structuresdfs and similartrees
3100328
2002D1DFS Checker (Easy Version)
brute forcedata structuresdfs and similargraphshashingtrees
19005.2k
2002D2DFS Checker (Hard Version)
binary searchdata structuresdfs and similargraphshashingtrees
23002.9k
1990E1Catch the Mole(Easy Version)
binary searchdata structuresdfs and similarinteractivetrees
25001.2k
1990E2Catch the Mole(Hard Version)
binary searchdata structuresdfs and similardivide and conquerinteractivetrees
26001.2k
1987EWonderful Tree!
brute forcedata structuresdfs and similardsugreedytrees
20004.2k
1985H1Maximize the Largest Component (Easy Version)
brute forcedata structuresdfs and similardsugraphsimplementation
17007.4k
1985H2Maximize the Largest Component (Hard Version)
data structuresdfs and similardpdsuimplementation
22002k
1980GYasya and the Mysterious Tree
bitmasksdata structuresdfs and similargraphsgreedystringstrees
23001.8k
1978FLarge Graph
data structuresdfs and similardsugraphsnumber theorytwo pointers
24001.6k
1976ESplittable Permutations
combinatoricsdata structuresdfs and similargreedymathtrees
25001.3k
1976FRemove Bridges
data structuresdfs and similardpgreedysortingstrees
2800893
1975EChain Queries
binary searchdata structuresdfs and similarimplementationtrees
21002.9k
1957F2Frequency Mismatch (Hard Version)
binary searchdata structuresdfs and similarhashingprobabilitiestrees
2700659
1946FNobody is needed
2-satdata structuresdfs and similardp
25001.3k
1942DLearning to Paint
binary searchdata structuresdfs and similardpgreedyimplementationsortings
21003.4k
1940CBurenka and Pether
*specialdata structuresdfs and similardivide and conquerdsugraphssortingstrees
unrated44
1935FAndrey's Tree
binary searchconstructive algorithmsdata structuresdfs and similardsugreedyimplementationtrees
2800634
1929FSasha and the Wedding Binary Search Tree
brute forcecombinatoricsdata structuresdfs and similarmathtrees
23002.4k
1927FMicrocycle
data structuresdfs and similardsugraphsgreedyimplementationsortingstrees
19005.6k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1920F1Smooth Sailing (Easy Version)
binary searchbrute forcedata structuresdfs and similardsugraphsshortest paths
25001.3k
1916EHappy Life in University
data structuresdfs and similargreedytrees
23002.7k
1914G2Light Bulbs (Hard Version)
combinatoricsdata structuresdfs and similardpgraphshashing
23001.9k
1904ETree Queries
data structuresdfs and similargraphsimplementationtrees
25001.4k
1904FBeautiful Tree
data structuresdfs and similargraphsimplementationtrees
2800582
1902FTrees and XOR Queries Again
data structuresdfs and similardivide and conquergraphsimplementationmathtrees
24001.5k
1899GUnusual Entertainment
data structuresdfs and similardsushortest pathssortingstreestwo pointers
19004.1k
1895EInfinite Card Game
binary searchbrute forcedata structuresdfs and similardpdsugamesgraphsgreedysortingstwo pointers
23001.9k
1891FA Growing Tree
data structuresdfs and similartrees
20004.9k
1878Gwxhtzdy ORO Tree
binary searchbitmasksbrute forcedata structuresdfs and similarimplementationtrees
23001.5k
1861CQueries for the Array
data structuresdfs and similarimplementationstringstrees
160012.5k
1860EFast Travel Text Editor
data structuresdfs and similargraphsshortest paths
24001.9k
1859FTeleportation in Byteland
data structuresdfs and similardivide and conquergraphsshortest pathstrees
3200583
1858E1Rollbacks (Easy Version)
brute forcedata structuresdfs and similartrees
25001.7k
1847FThe Boss's Identity
binary searchbitmasksdata structuresdfs and similargreedymathsortings
25001.1k
1844GTree Weights
bitmasksconstructive algorithmsdata structuresdfs and similarimplementationmathmatricesnumber theorytrees
30001.2k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1843F2Omsk Metro (hard version)
data structuresdfs and similardivide and conquerdpmathtrees
23002.2k
1827DTwo Centroids
data structuresdfs and similargreedytrees
28001k
1824CLuoTianyi and XOR-Tree
data structuresdfs and similardpdsugreedytrees
25001.7k
1810EMonsters
brute forcedata structuresdfs and similardsugraphsgreedy
21004k
1806ETree Master
brute forcedata structuresdfs and similartrees
22003.5k
1805EThere Should Be a Lot of Maximums
brute forcedata structuresdfs and similardptreestwo pointers
23002k
1797DLi Hua and Tree
brute forcedata structuresdfs and similardpimplementationtrees
19004.7k
1797FLi Hua and Path
data structuresdfs and similardivide and conquerdsutrees
3000666
1788ESum Over Zero
data structuresdfs and similardp
22003.4k
1771DHossam and (sub-)palindromic tree
brute forcedata structuresdfs and similardpstringstrees
21003.3k
1770DKoxia and Game
constructive algorithmsdata structuresdfs and similardsuflowsgamesgraph matchingsgraphsimplementation
20004.5k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1749FDistance to the Path
data structuresdfs and similartrees
2800642
1740EHanging Hearts
constructive algorithmsdata structuresdfs and similardpgreedytrees
18005.1k
1739DReset K Edges
binary searchdata structuresdfs and similargraphsgreedytrees
19006.5k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1716ESwap and Maximum Block
bitmasksdata structuresdfs and similardivide and conquerdp
25001.4k
1714GPath Prefixes
binary searchdata structuresdfs and similartrees
17009.9k
1712FTriameter
binary searchdata structuresdfs and similartrees
3200508
1709EXOR Tree
bitmasksdata structuresdfs and similardsugreedytrees
24004.2k
1706EQpwoeirut and Vertices
binary searchdata structuresdfs and similardivide and conquerdsugreedytrees
23004k
1702G2Passable Paths (hard version)
data structuresdfs and similartrees
20006.1k

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