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

Problemset

41 problems · filtered by 3 tags

✓#Name✎Rating↕Solved↕
2229EDeconstruction Tree
combinatoricsdata structuresdpgraphstrees
21002k
2205ESimons and Dividing the Rhythm
combinatoricsdata structuresdpdsumathstring suffix structuresstrings
21001.8k
2199HSum of MEX
*specialcombinatoricsdata structuresdpmath
2300100
2182GShort Garland
combinatoricsdata structuresdfs and similardptrees
2800383
2170EBinary Strings and Blocks
combinatoricsdata structuresdp
21002.4k
2164F2Chain Prefix Rank (Hard Version)
binary searchcombinatoricsdata structuresdfs and similardpgraphsmathtrees
2900648
2144E2Looking at Towers (difficult version)
combinatoricsdata structuresdp
25001.5k
2143D1Inversion Graph Coloring (Easy Version)
combinatoricsdata structuresdpgreedytwo pointers
18006.8k
2143D2Inversion Graph Coloring (Hard Version)
binary searchcombinatoricsdata structuresdptwo pointers
22003k
2077CBinary Subsequence Value Sum
combinatoricsdata structuresdpfftmathmatrices
23002.4k
2077EAnother Folding Strip
combinatoricsconstructive algorithmsdata structuresdivide and conquerdpgreedymath
2700627
2065HBro Thinks He's Him
combinatoricsdata structuresdivide and conquerdpmathmatrices
22002k
2063F1Counting Is Not Fun (Easy Version)
combinatoricsdata structuresdfs and similardpdsugraphshashingimplementationmathtrees
24001.6k
2056DUnique Median
binary searchbrute forcecombinatoricsdata structuresdivide and conquerdp
22003.7k
2037GNatlan Exploring
bitmaskscombinatoricsdata structuresdpmathnumber theory
20003.9k
2030EMEXimize the Score
combinatoricsdata structuresdpgreedyimplementationmath
22002k
1967CFenwick Tree
bitmasksbrute forcecombinatoricsdata structuresdpmathtrees
23002.3k
1917BErase First or Second Letter
brute forcecombinatoricsdata structuresdpstrings
110038.7k
1917DYet Another Inversions Problem
combinatoricsdata structuresdpimplementationmathnumber theory
23002.1k
1914G2Light Bulbs (Hard Version)
combinatoricsdata structuresdfs and similardpgraphshashing
23001.9k
1844HMultiple of Three Cycles
combinatoricsdata structuresdpdsumath
3400305
1811G2Vlad and the Nice Paths (hard version)
binary searchcombinatoricsdata structuresdpmathtwo pointers
22002.2k
1780FThree Chairs
bitmasksbrute forcecombinatoricsdata structuresdpnumber theorysortings
23002k
1774GSegment Covering
brute forcecombinatoricsconstructive algorithmsdata structuresdptrees
3200692
1743GAntifibonacci Cut
bitmaskscombinatoricsconstructive algorithmsdata structuresdphashingmath
3000381
1725EElectrical Efficiency
combinatoricsdata structuresdpmathnumber theorytrees
2500640
1616HKeep XOR Low
bitmaskscombinatoricsdata structuresdivide and conquerdpmath
30001.4k
1598EStaircases
brute forcecombinatoricsdata structuresdfs and similardpimplementationmath
21002.5k
1486FPairs of Paths
combinatoricsdata structuresdfs and similardptrees
2600875
1485FCopy or Prefix Sum
combinatoricsdata structuresdpsortings
24002.4k
1470EStrange Permutation
binary searchcombinatoricsdata structuresdpgraphsimplementationtwo pointers
3200981
1383EStrange Operation
combinatoricsdata structuresdp
28001.1k
1327FAND Segments
bitmaskscombinatoricsdata structuresdptwo pointers
25002.1k
1284BNew Year and Ascent Sequence
binary searchcombinatoricsdata structuresdpimplementationsortings
140011.6k
1197ECulture Code
binary searchcombinatoricsdata structuresdpshortest pathssortings
23001.9k
1151ENumber of Components
combinatoricsdata structuresdpmath
21003.8k
1085GBeautiful Matrix
combinatoricsdata structuresdp
29001k
981HK Paths
combinatoricsdata structuresdpfftmath
3100453
689EMike and Geometry Problem
combinatoricsdata structuresdpgeometryimplementation
20002.3k
629EFamil Door and Roads
combinatoricsdata structuresdfs and similardpprobabilitiestrees
23001.2k
577BModulo Sum
combinatoricsdata structuresdptwo pointers
190015.6k

showing 1–41 of 41