CodeSearch
pick a problem · learn it with an AI tutor — hints, not spoilers
37,000 problems · all sources
- Levko and Strings2500Codeforcescombinatoricsdp
- Lexichromatography2500Codeforcescombinatoricsdfs and similardsugraphs
- Lexicographic Matching2667CodeChef
- Liar2400Codeforcesbinary searchdphashingstring suffix structures
- Liars and Serge2700Codeforcesdp
- Library game2500Codeforcesgamesgreedyinteractivesortings
- Lift and Throw2500Codeforcesbrute force
- Light switches2600Codeforcesmeet-in-the-middle
- Lights Off, Revisited!2891CodeChef
- Lightsabers (hard)2600Codeforcesfft
- Lihmuf Balling2400Codeforcesbinary searchbrute forcemath
- Limak and Shooting Points2600Codeforcesbrute forcegeometrymath
- Limit of MEX2649CodeChef
- Linear Kingdom Races2400Codeforcesdata structuresdp
- Little Artem and Random Variable2400Codeforcesdpimplementationmathprobabilities
- Little Elephant and Broken Sorting2600Codeforcesdpmathprobabilities
- Little Elephant and Colored Coins2849CodeChef
- Little Elephant and Filling2697CodeChef
- Little Elephant and Inversions2400Codeforcesdata structurestwo pointers
- Little Elephant and Lucky Segment2851CodeChef
- Little Elephant and Retro Strings2400Codeforcesdp
- Little Elephant and Tree2400Codeforcesdata structuresdfs and similartrees
- Little Elephant and Triangle2500Codeforcesgeometrymath
- Lizards and Basements 22600Codeforcesbrute forcedp
- Load Unbalancing2400Codeforcesbinary searchbitmasksdpgreedy
- Loader2500Codeforces*specialgraphs
- Locked Safe2738CodeChef
- Logical Expression2400Codeforcesbitmasksdpshortest paths
- Long Colorful Strip2600Codeforcesdp
- Long Journey2500Codeforcesdfs and similardivide and conquerdpgraphs
- Long Permutation2400Codeforcesbrute forcemathtwo pointers
- Long Way Home2400Codeforcesdata structuresdivide and conquerdpgeometry
- Long sequence2700Codeforcesbrute forcemathmatrices
- Longest Article2821CodeChef
- Longest Non Decreasing Subsequence2839CodeChef
- Longest Spanning Substrings2830CodeChef
- Longest Unfriendly Subsequence2880CodeChef
- Looking at Towers (difficult version)2500Codeforcescombinatoricsdata structuresdp
- Looking for Owls2400Codeforcesbinary searchdata structuresgeometryhashing
- Lost Root2400Codeforcesinteractiveprobabilities
- Lostborn2600Codeforcesdpmathnumber theory
- Lottery2500Codeforcesbinary searchbrute forcegreedymath
- Love-Hate2400Codeforcesbitmasksbrute forcedpprobabilities
- Lovers Gift2650CodeChef
- Lowest Common Ancestor2600CodeChef
- Lucas Theorem2757CodeChef
- Lucky Array2400Codeforcesdata structures
- Lucky Arrays2400Codeforcesdata structures
- Lucky Country2500Codeforcesdpdsugraphs
- Lucky Interval2700Codeforcesbrute forcemath
- Lucky Matrix2613CodeChef
- Lucky Queries2400Codeforcesdata structures
- Lucky Segments2500Codeforcesbinary searchimplementationtwo pointers
- Lucky Tickets2400Codeforcesdivide and conquerdpfft
- Lucky Tickets2700Codeforcesbrute forceconstructive algorithms
- Lucy and Palindromes2621CodeChef
- Lucy and Question Marks2828CodeChef
- Lunar New Year and a Recursive Sequence2400Codeforcesmathmatricesnumber theory
- LuoTianyi and XOR-Tree2500Codeforcesdata structuresdfs and similardpdsu
- MCMF?2700Codeforcesdata structuresflowsgraphsgreedy