cf/mirror
11,311/11,320 captured·📄 81 PDFs⊘ 0 skipped9 remaining100%

Problemset

87 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
2229EDeconstruction Tree
combinatoricsdata structuresdpgraphstrees
21002k
2195GIdiot First Search and Queries
binary searchdata structuresdpgraphstrees
23001.2k
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900648
2155FJuan's Colorful Tree
data structuresdfs and similardsugraphsmeet-in-the-middletrees
2800745
2131DArboris Contractio
data structuresgraphsgreedytrees
140014.9k
2126F1-1-1, Free Tree!
brute forcedata structuresdfs and similargraphsimplementationtrees
20004.4k
2118FShifts and Swaps
data structuresgraphshashingtrees
3100299
2104GModulo 3
data structuresdivide and conquerdsugraphstrees
2700553
2065FSkibidus and Slay
data structuresdfs and similargraphsgreedytrees
17007.3k
2063CRemove Exactly Two
brute forcedata structuresdfs and similardpgraphsgreedysortingstrees
160015.1k
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
2032DGenokraken
constructive algorithmsdata structuresgraphsgreedyimplementationinteractivetreestwo pointers
18006.3k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2021E2Digital Village (Hard Version)
data structuresdpdsugraphsmathtrees
25001.3k
2021E3Digital Village (Extreme Version)
data structuresdfs and similardpdsugraphsgreedymathtrees
2800725
2002D1DFS Checker (Easy Version)
brute forcedata structuresdfs and similargraphshashingtrees
19005.2k
2002D2DFS Checker (Hard Version)
binary searchdata structuresdfs and similargraphshashingtrees
23002.9k
1980GYasya and the Mysterious Tree
bitmasksdata structuresdfs and similargraphsgreedystringstrees
23001.8k
1940CBurenka and Pether
*specialdata structuresdfs and similardivide and conquerdsugraphssortingstrees
unrated44
1927FMicrocycle
data structuresdfs and similardsugraphsgreedyimplementationsortingstrees
19005.6k
1923ECount Paths
data structuresdfs and similardpdsugraphstrees
20005.3k
1920F2Smooth Sailing (Hard Version)
binary searchdata structuresdsugeometrygraphstrees
3000668
1904ETree Queries
data structuresdfs and similargraphsimplementationtrees
25001.4k
1904FBeautiful Tree
data structuresdfs and similargraphsimplementationtrees
2800581
1903FBabysitting
2-satbinary searchdata structuresgraphstrees
2500976
1902FTrees and XOR Queries Again
data structuresdfs and similardivide and conquergraphsimplementationmathtrees
24001.5k
1870HStandard Graph Problem
data structuresgraphsgreedytrees
3500127
1866KKeen Tree Calculation
binary searchdata structuresdpgeometrygraphsimplementationtrees
2500585
1859FTeleportation in Byteland
data structuresdfs and similardivide and conquergraphsshortest pathstrees
3200582
1851GVlad and the Mountains
binary searchdata structuresdsugraphsimplementationsortingstreestwo pointers
20004.2k
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1739DReset K Edges
binary searchdata structuresdfs and similargraphsgreedytrees
19006.4k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1654GSnowy Mountain
data structuresdfs and similargraphsgreedyshortest pathstrees
2900474
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
1633ESpanning Tree Queries
binary searchdata structuresdfs and similardsugraphsgreedymathsortingstrees
24001.8k
1632E1Distance Tree (easy version)
binary searchdata structuresdfs and similargraphsshortest pathstrees
24001.4k
1625E1Cats on the Upgrade (easy version)
brute forcedata structuresdfs and similardivide and conquerdpgraphstrees
25001.2k
1625E2Cats on the Upgrade (hard version)
binary searchdata structuresdfs and similargraphstrees
2800705
1615EPurple Crayon
data structuresdfs and similargamesgraphsgreedymathsortingstrees
24001.8k
1555FGood Graph
data structuresdsugraphstrees
27001.1k
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1495FSquares
constructive algorithmsdata structuresdpgraphstrees
3300533
1416DGraph and Queries
data structuresdsugraphsimplementationtrees
26002.9k
1408EAvoid Rainbow Cycles
data structuresdsugraphsgreedysortingstrees
24002.2k
1403BSpring cleaning
*specialdata structuresdfs and similargraphstrees
2300437
1388DCaptain Flint and Treasure
data structuresdfs and similargraphsgreedyimplementationtrees
20007k
1368GShifting Dominoes
data structuresgeometrygraphstrees
3200797
1336FJourney
data structuresdivide and conquergraphstrees
3500284
1286BNumbers on Tree
constructive algorithmsdata structuresdfs and similargraphsgreedytrees
18005.7k
1285EDelete a Segment
brute forceconstructive algorithmsdata structuresdpgraphssortingstreestwo pointers
23002k
1284FNew Year and Social Network
data structuresgraph matchingsgraphsmathtrees
3200424
1278DSegment Tree
data structuresdsugraphstrees
21004.4k
1263FEconomic Difficulties
data structuresdfs and similardpflowsgraphstrees
2400982
1217FForced Online Queries Problem
data structuresdivide and conquerdsugraphstrees
2600744
1209FKoala and Notebook
data structuresdfs and similargraphsshortest pathsstringstrees
26001.4k
1184E3Daleks' Invasion (hard)
data structuresdsugraphstrees
2400698
1111ETree
data structuresdfs and similardpgraphstrees
25001.2k
1045ALast chance
data structuresflowsgraph matchingsgraphstrees
2500607
1042FLeaf Sets
data structuresdfs and similardsugraphsgreedysortingstrees
24001.6k
958B2Maximum Control (medium)
data structuresdfs and similargraphsgreedytrees
2200765
915FImbalance Value of a Tree
data structuresdsugraphstrees
24003.2k
827DBest Edge Weight
data structuresdfs and similargraphstrees
27001.5k
786EALT
data structuresflowsgraphstrees
3200849
776FSherlock's bet to Moriarty
constructive algorithmsdata structuresdivide and conquergeometrygraphsimplementationtrees
2800543
763DTimofey and a flat tree
data structuresgraphshashingshortest pathstrees
2900682
757GCan Bash Save the Day?
data structuresdivide and conquergraphstrees
3400660
739BAlyona and a tree
binary searchdata structuresdfs and similargraphstrees
19005.2k
733FDrivers Dissatisfaction
data structuresdsugraphstrees
22001.4k
708CCentroids
data structuresdfs and similardpgraphsgreedytrees
23004.5k
639FBear and Chemistry
data structuresdfs and similargraphstrees
3300610
609EMinimum spanning tree for each edge
data structuresdfs and similardsugraphstrees
210010.7k
593DHappy Tree Party
data structuresdfs and similargraphsmathtrees
24001.5k
557EAnn and Half-Palindrome
data structuresdpgraphsstring suffix structuresstringstrees
23001.3k
487ETourists
data structuresdfs and similargraphstrees
32003k
418DBig Problems for Organizers
data structuresgraphstrees
2800580
396COn Changing Tree
data structuresgraphstrees
unrated1.9k
343DWater Tree
data structuresdfs and similargraphstrees
21007.1k
276ELittle Girl and Problem on Trees
data structuresgraphstrees
21001.9k
231ECactus
data structuresdfs and similardpgraphstrees
21002.4k
117ETree or not Tree
data structuresdivide and conquergraphsimplementationtrees
2900451

showing 1–87 of 87