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- Little Elephant and Array1800Codeforcesconstructive algorithmsdata structures
- Little Elephant and Balloons2179CodeChef
- Little Elephant and Bubble Sort2051CodeChef
- Little Elephant and Painting2114CodeChef
- Little Elephant and Product2093CodeChef
- Little Girl and Maximum XOR1700Codeforcesbitmasksdpgreedyimplementation
- Logo Turtle1800Codeforcesdp
- Long Beautiful Integer1700Codeforcesconstructive algorithmsgreedyimplementationstrings
- Long Inversions1700Codeforcesbrute forcegreedyimplementationsortings
- Long Jumps1700Codeforcesbinary searchgreedyimplementation
- Long Legs1700Codeforcesbrute forcemath
- Longest Weird Subsequence2011CodeChef
- Longest non regular parentheses sub-sequence2187CodeChef
- Look Back1700Codeforcesbitmasksgreedy
- Los Pollos Hermanos2187CodeChef
- Lost Civilization (Hard Version)1700Codeforcesdata structuresdp
- Lost Tree1800Codeforcesconstructive algorithmsinteractivetrees
- Love Squares Hate Cubes2150CodeChef
- Lucky Balance2129CodeChef
- Lucky Number2015CodeChef
- Lucky Number 21800Codeforcesconstructive algorithms
- Lucky Numbers1800Codeforcesdpgreedy
- Lucky Permutation1800Codeforcesconstructive algorithmsdfs and similargraphsgreedy
- LuoTianyi and the Floating Islands (Easy Version)1800Codeforcescombinatoricsmathprobabilitiestrees
- MAD Interactive Problem1700Codeforcesconstructive algorithmsimplementationinteractive
- MADMAX1700Codeforcesdfs and similardpgamesgraphs
- MEX and Increments1700Codeforcesconstructive algorithmsdata structuresdpgreedy
- MUH and Cube Walls1800Codeforcesstring suffix structuresstrings
- MUH and House of Cards1700Codeforcesbinary searchbrute forcegreedymath
- Mad City1700Codeforcesdfs and similardsugamesgraphs
- Magic Board2197CodeChef
- Magic Five1700Codeforcescombinatoricsmath
- Magic Grid1800Codeforcesconstructive algorithms
- Magic Strings2071CodeChef
- Magic Tricks1700Codeforces*specialdpgraphs
- Magic Triples (Easy Version)1700Codeforcesbrute forcedata structuresmathnumber theory
- Magic Will Save the World1800Codeforcesbinary searchbitmasksbrute forcedp
- Magical Candy Store2001CodeChef
- Magical Flips2023CodeChef
- Magician versus Chef 22196CodeChef
- Magnitude (Hard Version)1700Codeforcescombinatoricsdpgreedymath
- Magnum Opus1700Codeforces*special
- Mahmoud and a Message1700Codeforcesbrute forcedpgreedystrings
- Mail Stamps1700Codeforcesdata structuresdfs and similargraphsimplementation
- Make All2038CodeChef
- Make Connected1700Codeforcesbrute forceimplementation
- Make Palindrome1800Codeforcesconstructive algorithmsgreedystrings
- Make The Fence Great Again1800Codeforcesdp
- Make a Palindrome1700Codeforcesgreedysortingstwo pointers
- Make them Equal2060CodeChef
- Makx Sum2081CodeChef
- Manhattan Pairs1700Codeforcesconstructive algorithmsgeometrygreedymath
- Manhattan Subarrays1700Codeforcesbrute forcegeometrygreedyimplementation
- Manipulating History1700Codeforcesconstructive algorithmsgreedystrings
- Many Perfect Squares1800Codeforcesbrute forcemathnumber theory
- Maple and Tree Beauty (Easy Version)1800Codeforcesbrute forcedfs and similardpgraphs
- Marcin and Training Camp1700Codeforcesbrute forcegreedy
- Marina and Vasya1700Codeforcesconstructive algorithmsgreedystrings
- Mark and Lightbulbs1800Codeforcescombinatoricsconstructive algorithmsgreedymath
- Markers and Caps2063CodeChef