1234B2
Social Network (hard version)
data structuresimplementation
Rating 1300
原题Codeforces 训练
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1574C
Slay the Dragon
binary searchgreedysortingsternary search
Rating 1300
原题1547D
Co-growing Sequence
bitmasksconstructive algorithmsgreedy
Rating 1300
原题2118C
Make It Beautiful
bitmasksdata structuresgreedymath
Rating 1300
原题1466C
Canine poetry
dpgreedystrings
Rating 1300
原题2059B
Cost of the Array
brute forceconstructive algorithmsgreedymath
Rating 1300
原题2065C2
Skibidus and Fanum Tax (hard version)
binary searchgreedy
Rating 1300
原题2049B
pspspsps
brute forceconstructive algorithmsgraph matchingsimplementation
Rating 1300
原题1420C1
Pokémon Army (easy version)
constructive algorithmsdpgreedy
Rating 1300
原题2075B
Array Recoloring
constructive algorithmsgreedy
Rating 1300
原题2050D
Digital string maximization
brute forcegreedymathstrings
Rating 1300
原题486B
OR in Matrix
greedyhashingimplementation
Rating 1300
原题2025C
New Game
binary searchbrute forcegreedyimplementationsortingstwo pointers
Rating 1300
原题1373C
Pluses and Minuses
math
Rating 1300
原题96B
Lucky Numbers (easy)
binary searchbitmasksbrute force
Rating 1300
原题1560D
Make a Power of Two
greedymathstrings
Rating 1300
原题1788C
Matching Numbers
constructive algorithmsgreedymath
Rating 1300
原题330B
Road Construction
constructive algorithmsgraphs
Rating 1300
原题1698C
3SUM Closure
brute forcedata structures
Rating 1300
原题1433E
Two Round Dances
combinatoricsmath
Rating 1300
原题2091E
Interesting Ratio
brute forcemathnumber theorytwo pointers
Rating 1300
原题1862D
Ice Cream Balls
binary searchcombinatoricsconstructive algorithmsmath
Rating 1300
原题1873F
Money Trees
binary searchgreedymathtwo pointers
Rating 1300
原题1037C
Equalize
dpgreedystrings
Rating 1300
原题617B
Chocolate
combinatorics
Rating 1300
原题1676F
Longest Strike
data structuresgreedyimplementationsortingstwo pointers
Rating 1300
原题1984C1
Magnitude (Easy Version)
dpgreedymath
Rating 1300
原题1988C
Increasing Sequence with Fixed OR
bitmasksconstructive algorithmsgreedy
Rating 1300
原题519C
A and B and Team Training
greedyimplementationmathnumber theory
Rating 1300
原题1661B
Getting Zero
bitmasksbrute forcedfs and similardpgraphsgreedyshortest paths
Rating 1300
原题1618D
Array and Operations
dpgreedymath
Rating 1300
原题1341B
Nastya and Door
greedyimplementation
Rating 1300
原题1948C
Arrow Path
brute forceconstructive algorithmsdfs and similardpgraphsshortest paths
Rating 1300
原题1371C
A Cookie for You
greedyimplementationmath
Rating 1300
原题1775B
Gardener and the Array
bitmasksconstructive algorithms
Rating 1300
原题1459B
Move and Turn
dpmath
Rating 1300
原题251A
Points on Line
binary searchcombinatoricstwo pointers
Rating 1300
原题1476B
Inflation
binary searchbrute forcegreedymath
Rating 1300
原题1943A
MEX Game 1
gamesgreedy
Rating 1300
原题1381A1
Prefix Flip (Easy Version)
constructive algorithmsdata structuresstrings
Rating 1300
原题1980C
Sofia and the Lost Operations
constructive algorithmsgreedy
Rating 1300
原题1601A
Array Elimination
bitmasksgreedymathnumber theory
Rating 1300
原题1829F
Forever Winter
dfs and similargraphsmath
Rating 1300
原题1660C
Get an Even String
dpgreedystrings
Rating 1300
原题1922C
Closest Cities
greedyimplementationmath
Rating 1300
原题1561C
Deep Down Below
binary searchgreedysortings
Rating 1300
原题1454D
Number into Sequence
constructive algorithmsmathnumber theory
Rating 1300
原题1178B
WOW Factor
dpstrings
Rating 1300
原题1794C
Scoring Subsequences
binary searchgreedymathtwo pointers
Rating 1300
原题1521B
Nastia and a Good Array
constructive algorithmsmathnumber theory
Rating 1300
原题