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

Problemset

143 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
2187CJerry and Tom
data structuresdfs and similardsugamesgraphsgreedytrees
23001.5k
2164EJourney
data structuresdfs and similardsugraphsgreedy
23003.6k
2155FJuan's Colorful Tree
data structuresdfs and similardsugraphsmeet-in-the-middletrees
2800745
2141HMerging Vertices in a Graph
*specialdfs and similardsugraphs
270085
2135CBy the Assignment
binary searchbitmaskscombinatoricsdfs and similardsugraphsmath
20005.4k
2097BBaggage Claim
combinatoricsdfs and similardpdsugraphsimplementationmathtrees
23002k
2086CDisappearing Permutation
dfs and similardpdsugraphsgreedyimplementation
130016.6k
2069FGraph Inclusion
data structuresdfs and similardivide and conquerdsugraphs
2800824
2068EPorto Vs. Benfica
data structuresdfs and similardsugraphsshortest paths
2800384
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2063F2Counting Is Not Fun (Hard Version)
combinatoricsdata structuresdfs and similardsugraphsimplementationtrees
2700951
2060EGraph Composition
dfs and similardsugraphsgreedy
150012.7k
2057E2Another Exercise on Graphs (hard version)
binary searchdfs and similardpdsugraphsshortest pathssortings
25002k
2044G2Medium Demon Problem (hard version)
dfs and similardpdsugraphsimplementationtrees
19004k
2033ESakurako, Kosuke, and the Permutation
brute forcedata structuresdfs and similardsugraphsgreedymath
140014.5k
2029DCool Graph
constructive algorithmsdata structuresdfs and similardsugraphsgreedytrees
19004k
2022E1Billetes MX (Easy Version)
2-satbinary searchcombinatoricsconstructive algorithmsdfs and similardsugraphs
2500780
2021E1Digital Village (Easy Version)
brute forcedata structuresdfs and similardpdsufftgraphsgreedyimplementationmathtrees
23002k
2021E3Digital Village (Extreme Version)
data structuresdfs and similardpdsugraphsgreedymathtrees
2800725
1985H1Maximize the Largest Component (Easy Version)
brute forcedata structuresdfs and similardsugraphsimplementation
17007.4k
1978FLarge Graph
data structuresdfs and similardsugraphsnumber theorytwo pointers
24001.6k
1940AParallel Universes
*specialconstructive algorithmsdfs and similardsugraphs
unrated106
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
1920F1Smooth Sailing (Easy Version)
binary searchbrute forcedata structuresdfs and similardsugraphsshortest paths
25001.3k
1914G1Light Bulbs (Easy Version)
brute forcecombinatoricsdfs and similardpdsugraphsmathtrees
21002.5k
1900ETransitive Graph
dfs and similardpdsugraphsimplementation
21002.7k
1895EInfinite Card Game
binary searchbrute forcedata structuresdfs and similardpdsugamesgraphsgreedysortingstwo pointers
23001.9k
1876DLexichromatography
combinatoricsdfs and similardsugraphstwo pointers
25001.1k
1873HMad City
dfs and similardsugamesgraphsshortest pathstrees
17009.7k
1872FSelling a Menagerie
dfs and similardsugraphsimplementationmath
18007.7k
1850HThe Third Letter
dfs and similardsugraphsgreedyimplementation
170010.2k
1844EGreat Grids
2-satconstructive algorithmsdfs and similardsugraphs
24002.2k
1833ERound Dance
dfs and similardsugraphsshortest paths
160019.5k
1829EThe Lakes
dfs and similardsugraphsimplementation
110027.7k
1810EMonsters
brute forcedata structuresdfs and similardsugraphsgreedy
21004k
1800E2Unforgivable Curse (hard version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedystrings
150015.6k
1788FXOR, Tree, and Queries
bitmasksconstructive algorithmsdfs and similardsugraphsgreedyimplementationtrees
25001.2k
1787DGame on Axis
combinatoricsdfs and similardsugraphsimplementation
19003.9k
1770DKoxia and Game
constructive algorithmsdata structuresdfs and similardsuflowsgamesgraph matchingsgraphsimplementation
20004.5k
1763FEdge Queries
data structuresdfs and similardpdsugraphstrees
3000750
1758ETick, Tock
combinatoricsdfs and similardsugraphs
25001.1k
1738DPermutation Addicts
constructive algorithmsdata structuresdfs and similardsugraphstrees
19003.8k
1735CPhase Shift
dfs and similardsugraphsgreedyimplementationstrings
140011k
1726DEdge Split
brute forceconstructive algorithmsdfs and similardsugraphsprobabilitiestrees
20004.2k
1707CDFS Trees
dfs and similardsugraphsgreedysortingstrees
24002k
1702ESplit Into Two Sets
dfs and similardsugraphs
160018.7k
1696FTree Recovery
brute forceconstructive algorithmsdfs and similardsugraphstrees
26001.2k
1691ENumber of Groups
data structuresdfs and similardsugraphsgreedysortings
23002.2k
1689EANDfinity
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
25001.4k
1680FLenient Vertex Cover
dfs and similardivide and conquerdsugraphstrees
2600979
1670CWhere is the Pizza?
data structuresdfs and similardsugraphsimplementationmath
140011.1k
1659EAND-MEX Walk
bitmasksbrute forceconstructive algorithmsdfs and similardsugraphs
22002k
1657FWords on Tree
2-satdfs and similardsugraphstrees
2600854
1648EAir Reform
data structuresdfs and similardivide and conquerdsugraphsimplementationtrees
3200601
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
1615DX(or)-mas Tree
bitmasksdfs and similardsugraphstrees
22002.2k
1594DThe Number of Imposters
constructive algorithmsdfs and similardpdsugraphs
17009.8k
1574FOccurrences
combinatoricsdfs and similardpdsufftgraphs
2700786
1567FOne-Four Overload
2-satconstructive algorithmsdfs and similardsugraphsimplementation
2700888
1559D2Mocha and Diana (Hard Version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedytreestwo pointers
25003.2k
1553EPermutation Shift
brute forcecombinatoricsconstructive algorithmsdfs and similardsugraphsmath
21003.8k
1537FFigure Fixing
constructive algorithmsdfs and similardsugraphsgreedymath
22002.9k
1515FPhoenix and Earthquake
constructive algorithmsdfs and similardsugraphsgreedytrees
26002.2k
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1466FEuclid's nightmare
bitmasksdfs and similardsugraphsgreedymathsortings
21003.1k
1463EPlan of Lectures
constructive algorithmsdfs and similardsugraphsimplementationsortingstrees
24001.8k
1444CTeam-Building
data structuresdfs and similardsugraphs
25001.9k
1419FRain of Fire
binary searchdata structuresdfs and similardsugraphsimplementation
2800632
1411CPeaceful Rooks
dfs and similardsugraphs
17008.7k
1385GColumns Swaps
2-satdfs and similardsugraphsimplementation
23001.9k
1365DSolve The Maze
constructive algorithmsdfs and similardsugraphsgreedyimplementationshortest paths
170021.3k
1361CJohnny and Megan's Necklace
binary searchbitmasksconstructive algorithmsdfs and similardsugraphs
25002.1k
1344BMonopole Magnets
constructive algorithmsdfs and similardsugraphs
20006.4k
1335FRobots on a Grid
data structuresdfs and similardsugraphsgreedymatrices
22002.5k
1290CPrefix Enlightenment
dfs and similardsugraphs
24002.1k
1276BTwo Fairs
combinatoricsdfs and similardsugraphs
19005.7k
1263DSecret Passwords
dfs and similardsugraphs
150016.6k
1253DHarmonious Graph
constructive algorithmsdfs and similardsugraphsgreedysortings
170010.4k
1242B0-1 MST
dfs and similardsugraphssortings
19009.6k
1220ETourism
dfs and similardpdsugraphsgreedytrees
22003.1k
1213FUnstable String Sort
data structuresdfs and similardsugraphsgreedyimplementationstrings
21003.1k
1209DCow and Snacks
dfs and similardsugraphs
170010.9k
1176ECover it!
dfs and similardsugraphsshortest pathstrees
170014k
1167CNews Distribution
dfs and similardsugraphs
140027.4k
1139CEdgy Trees
dfs and similardsugraphsmathtrees
150017.4k
1133F2Spanning Tree with One Fixed Degree
constructive algorithmsdfs and similardsugraphsgreedy
19003.9k
1131DGourmet choice
dfs and similardpdsugraphsgreedy
20003.7k
1120DPower Tree
dfs and similardpdsugraphsgreedytrees
25001.8k
1042FLeaf Sets
data structuresdfs and similardsugraphsgreedysortingstrees
24001.6k
1039CNetwork Safety
dfs and similardsugraphsmathsortings
22001.5k
1027FSession in BSU
binary searchdfs and similardsugraph matchingsgraphs
24002k
1023FMobile Phone Network
dfs and similardsugraphstrees
26001.1k
1012BChemical table
constructive algorithmsdfs and similardsugraphsmatrices
19004.4k
986CAND Graph
bitmasksdfs and similardsugraphs
25002.8k

showing 1–100 of 143