652E
Pursuit For Artifacts
dfs and similardsugraphstrees
Rating 2300
原题Codeforces 训练
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1495C
Garden of the Sun
constructive algorithmsgraphs
Rating 2300
原题1995D
Cases
bitmasksbrute forcedpstrings
Rating 2300
原题2002E
Cosmic Rays
brute forcedata structuresdp
Rating 2300
原题1528C
Trees of Tranquillity
data structuresdfs and similargreedytrees
Rating 2300
原题1870E
Another MEX Problem
bitmasksbrute forcedpshortest paths
Rating 2300
原题1540B
Tree Array
brute forcecombinatoricsdpgraphsmathprobabilitiestrees
Rating 2300
原题891C
Envy
data structuresdsugraphs
Rating 2300
原题1404C
Fixed Point Removal
binary searchconstructive algorithmsdata structuresgreedytwo pointers
Rating 2300
原题487C
Prefix Product Sequence
constructive algorithmsmathnumber theory
Rating 2300
原题1658D2
388535 (Hard Version)
bitmasksbrute forcedata structuresmath
Rating 2300
原题1422D
Returning Home
graphsshortest pathssortings
Rating 2300
原题1693C
Keshi in Search of AmShZ
graphsgreedyshortest paths
Rating 2300
原题543D
Road Improvement
dptrees
Rating 2300
原题1203F2
Complete the Projects (hard version)
dpgreedy
Rating 2300
原题154C
Double Profiles
graphshashingsortings
Rating 2300
原题383D
Antimatter
dp
Rating 2300
原题732F
Tourist Reform
dfs and similargraphs
Rating 2300
原题675E
Trains and Statistic
data structuresdpgreedy
Rating 2300
原题1182E
Product Oriented Recurrence
dpmathmatricesnumber theory
Rating 2300
原题160D
Edges in MST
dfs and similardsugraphssortings
Rating 2300
原题817F
MEX Queries
binary searchdata structurestrees
Rating 2300
原题547C
Mike and Foam
bitmaskscombinatoricsdpmathnumber theory
Rating 2300
原题715B
Complete The Graph
binary searchconstructive algorithmsgraphsshortest paths
Rating 2300
原题1824B2
LuoTianyi and the Floating Islands (Hard Version)
combinatoricsdfs and similarmathprobabilitiestrees
Rating 2300
原题1228E
Another Filling the Grid
combinatoricsdpmath
Rating 2300
原题1699D
Almost Triple Deletions
data structuresdpgreedy
Rating 2300
原题1342E
Placing Rooks
combinatoricsfftmath
Rating 2300
原题1073E
Segment Sum
bitmaskscombinatoricsdpmath
Rating 2300
原题2134D
Sliding Tree
constructive algorithmsdfs and similargreedyimplementationtrees
Rating 2300
原题785D
Anton and School - 2
combinatoricsdpmathnumber theory
Rating 2300
原题1198D
Rectangle Painting 1
dp
Rating 2300
原题1706E
Qpwoeirut and Vertices
binary searchdata structuresdfs and similardivide and conquerdsugreedytrees
Rating 2300
原题808G
Anthem of Berland
dpstrings
Rating 2300
原题1450C2
Errich-Tac-Toe (Hard Version)
constructive algorithmsmath
Rating 2300
原题825E
Minimal Labels
data structuresdfs and similargraphsgreedy
Rating 2300
原题708C
Centroids
data structuresdfs and similardpgraphsgreedytrees
Rating 2300
原题451E
Devu and Flowers
bitmaskscombinatoricsnumber theory
Rating 2300
原题718C
Sasha and Array
data structuresmathmatrices
Rating 2300
原题1188B
Count Pairs
mathmatricesnumber theorytwo pointers
Rating 2300
原题598C
Nearest vectors
geometrysortings
Rating 2300
原题1316E
Team Building
bitmasksdpgreedysortings
Rating 2300
原题915E
Physical Education Lessons
data structuresimplementationsortings
Rating 2300
原题888G
Xor-MST
bitmasksconstructive algorithmsdata structures
Rating 2300
原题713C
Sonya and Problem Wihtout a Legend
dpsortings
Rating 2300
原题558E
A Simple Task
data structuressortingsstrings
Rating 2300
原题1009F
Dominant Indices
data structuresdsutrees
Rating 2300
原题786B
Legacy
data structuresgraphsshortest paths
Rating 2300
原题438D
The Child and Sequence
data structuresmath
Rating 2300
原题600E
Lomsat gelral
data structuresdfs and similardsutrees
Rating 2300
原题