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105 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
2244EMasha and the Garland
data structuresdpgreedyimplementationmathnumber theorystrings
unrated7.6k
2227FIt Just Keeps Going Sideways
binary searchdata structuresdpgreedymath
17004.4k
2223BZhily and Barknights
binary searchdata structuresdpmathsortingstwo pointers
16003.7k
2207CWhere's My Water?
data structuresdivide and conquerdpmath
16006.4k
2205ESimons and Dividing the Rhythm
combinatoricsdata structuresdpdsumathstring suffix structuresstrings
21001.8k
2199HSum of MEX
*specialcombinatoricsdata structuresdpmath
2300100
2180DInsolvable Disks
data structuresdpgreedymath
19004.4k
2179HBlackslex and Plants
bitmasksdata structuresdpimplementationmath
22001.4k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900648
2131GWafu!
bitmasksbrute forcedata structuresdfs and similardpmath
20003.9k
2128E1Submedians (Easy Version)
binary searchdata structuresdpgreedymath
19006.8k
2118D2Red Light, Green Light (Hard version)
binary searchbrute forcedata structuresdfs and similardpgraphsimplementationmathnumber theory
22002.6k
2091GGleb and Boating
brute forceconstructive algorithmsdata structuresdpgraphsgreedymathnumber theoryshortest paths
23001.6k
2077CBinary Subsequence Value Sum
combinatoricsdata structuresdpfftmathmatrices
23002.4k
2077EAnother Folding Strip
combinatoricsconstructive algorithmsdata structuresdivide and conquerdpgreedymath
2700627
2071D2Infinite Sequence (Hard Version)
bitmasksbrute forceconstructive algorithmsdata structuresdpimplementationmath
25001.1k
2065HBro Thinks He's Him
combinatoricsdata structuresdivide and conquerdpmathmatrices
22002k
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2053FEarnest Matrix Complement
brute forcedata structuresdpgreedyimplementationmath
2600963
2053I2Affectionate Arrays (Hard Version)
data structuresdpgraphsgreedymathshortest pathstwo pointers
3500110
2048FKevin and Math Class
brute forcedata structuresdivide and conquerdpimplementationmathtrees
25001.3k
2044HHard Demon Problem
constructive algorithmsdata structuresdpimplementationmath
21002.7k
2043CSums on Segments
binary searchbrute forcedata structuresdpgreedymath
160011.5k
2037GNatlan Exploring
bitmaskscombinatoricsdata structuresdpmathnumber theory
20003.9k
2033DKousuke's Assignment
data structuresdpdsugreedymath
130018.6k
2031EPenchick and Chloe's Trees
data structuresdfs and similardpgreedyimplementationmathsortingstrees
21002.8k
2030EMEXimize the Score
combinatoricsdata structuresdpgreedyimplementationmath
22002k
2026DSums of Segments
binary searchdata structuresdpimplementationmath
19006.1k
2025DAttribute Checks
brute forcedata structuresdpimplementationmathtwo pointers
18008k
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
2003E2Turtle and Inversions (Hard Version)
brute forcedata structuresdivide and conquerdpgreedymathtwo pointers
2700654
2003FTurtle and Three Sequences
brute forcedata structuresdpgreedymathprobabilitiestwo pointers
2800838
1989DSmithing Skill
brute forcedata structuresdpgreedymathsortingstwo pointers
19007.2k
1977CNikita and LCM
brute forcedata structuresdpgreedymathnumber theorysortings
19008.2k
1968G2Division + LCP (hard version)
binary searchbrute forcedata structuresdphashingmathstring suffix structuresstrings
22002.6k
1967CFenwick Tree
bitmasksbrute forcecombinatoricsdata structuresdpmathtrees
23002.3k
1927GPaint Charges
data structuresdpgreedymath
23002k
1926EVlad and an Odd Ordering
binary searchbitmasksdata structuresdpimplementationmathnumber theory
150015.2k
1921FSum of Progression
brute forcedata structuresdpimplementationmath
19005.2k
1917DYet Another Inversions Problem
combinatoricsdata structuresdpimplementationmathnumber theory
23002.1k
1870CColorful Table
binary searchdata structuresdpimplementationmathtwo pointers
130013.3k
1864DMatrix Cascade
brute forceconstructive algorithmsdata structuresdpgreedymath
17007.7k
1852CIna of the Mountain
data structuresdpgreedymath
24002.2k
1845DRating System
binary searchbrute forcedata structuresdpdsugreedymathtwo pointers
18009.2k
1844HMultiple of Three Cycles
combinatoricsdata structuresdpdsumath
3400305
1843F1Omsk Metro (simple version)
data structuresdfs and similardpgraphsgreedymathtrees
18006.5k
1843F2Omsk Metro (hard version)
data structuresdfs and similardivide and conquerdpmathtrees
23002.2k
1842ETenzing and Triangle
data structuresdpgeometrygreedymath
23001.9k
1829GHits Different
data structuresdpimplementationmath
160015.9k
1811G2Vlad and the Nice Paths (hard version)
binary searchcombinatoricsdata structuresdpmathtwo pointers
22002.2k
1795EExplosions?
binary searchdata structuresdpgreedymath
22002.4k
1748EYet Another Array Counting Problem
binary searchdata structuresdivide and conquerdpflowsmathtrees
23002.8k
1743GAntifibonacci Cut
bitmaskscombinatoricsconstructive algorithmsdata structuresdphashingmath
3000381
1732ELocation
data structuresdpmathnumber theory
2800604
1725EElectrical Efficiency
combinatoricsdata structuresdpmathnumber theorytrees
2500640
1706D2Chopping Carrots (Hard Version)
brute forceconstructive algorithmsdata structuresdpgreedymathnumber theorytwo pointers
24002k
1699EThree Days Grace
data structuresdpgreedymathnumber theorytwo pointers
26001.4k
1692HGambling
data structuresdpgreedymath
170010k
1662LIl Derby della Madonnina
data structuresdpmath
unrated1.4k
1661ENarrow Components
brute forcedata structuresdpdsumathtrees
25001.2k
1658EGojou and Matrix Game
data structuresdpgameshashingimplementationmathnumber theorysortings
25001.3k
1626CMonsters And Spells
binary searchdata structuresdpgreedyimplementationmathtwo pointers
170012k
1621GWeighted Increasing Subsequences
data structuresdpmath
3200901
1619EMEX and Increments
constructive algorithmsdata structuresdpgreedyimplementationmathsortings
170010.3k
1616HKeep XOR Low
bitmaskscombinatoricsdata structuresdivide and conquerdpmath
30001.4k
1598CDelete Two Elements
data structuresdpimplementationmathtwo pointers
120023.9k
1598EStaircases
brute forcecombinatoricsdata structuresdfs and similardpimplementationmath
21002.5k
1582EPchelyonok and Segments
binary searchdata structuresdpgreedymath
20004.3k
1562D1Two Hundred Twenty One (easy version)
data structuresdpmath
17006.7k
1561D1Up the Strip (simplified version)
brute forcedata structuresdpmathnumber theory
17006.2k
1498FChristmas Game
bitmasksdata structuresdfs and similardpgamesmathtrees
25001.1k
1497E1Square-Free Division (easy version)
data structuresdpgreedymathnumber theorytwo pointers
17009.2k
1497E2Square-Free Division (hard version)
data structuresdpgreedymathnumber theorytwo pointers
25002k
1474DCleaning
data structuresdpgreedymath
22004.4k
1416CXOR Inverse
bitmasksdata structuresdivide and conquerdpgreedymathsortingsstringstrees
20005.2k
1398CGood Subarrays
data structuresdpmath
160038.6k
1320AJourney Planning
data structuresdpgreedymathsortings
140022.7k
1265EBeautiful Mirrors
data structuresdpmathprobabilities
21004.7k
1202CYou Are Given a WASD-string...
brute forcedata structuresdpgreedyimplementationmathstrings
21002.8k
1200FGraph Traveler
brute forcedata structuresdfs and similardpgraphsimplementationmathnumber theory
23001.2k
1189CCandies!
data structuresdpimplementationmath
140011.1k
1151ENumber of Components
combinatoricsdata structuresdpmath
21003.8k
1142BLynyrd Skynyrd
data structuresdfs and similardpmathtrees
20004k
1061CMultiplicity
data structuresdpimplementationmathnumber theory
170011k
1041FRay in the tube
data structuresdivide and conquerdpmath
25001.7k
981HK Paths
combinatoricsdata structuresdpfftmath
3100453
979DKuro and GCD and XOR and SUM
binary searchbitmasksbrute forcedata structuresdpdsugreedymathnumber theorystringstrees
22002.3k
940ECashback
data structuresdpgreedymath
20004.5k
930ECoins Exhibition
data structuresdpmath
2900553
766EMahmoud and a xor trip
bitmasksconstructive algorithmsdata structuresdfs and similardpmathtrees
21003.6k
739EGosha is hunting
brute forcedata structuresdpflowsmathprobabilitiessortings
30002.8k
665FFour Divisors
data structuresdpmathnumber theorysortingstwo pointers
2400836
626GRaffles
data structuresdpgreedymath
3100813
573BBear and Blocks
binary searchdata structuresdpmath
16006.4k
557CArthur and Table
brute forcedata structuresdpgreedymathsortings
19004.3k
486ELIS of Sequence
data structuresdpgreedyhashingmath
22002.7k
385CBear and Prime Numbers
binary searchbrute forcedata structuresdpimplementationmathnumber theory
170010.8k
372CWatching Fireworks is Fun
data structuresdpmath
21005.1k

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