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- Bored Bakry2400Codeforcesbitmasksgreedymathtwo pointers
- Boring Queries2700Codeforcesdata structuresmathnumber theory
- Boring Trip2879CodeChef
- Boss, Thirsty2500Codeforcesdpgreedyimplementation
- Bottle Arrangement2700Codeforcesdata structuresdivide and conquerdpdsu
- Boxes and Balls2500Codeforcesdpimplementationmath
- Bracket Cost2400Codeforcesbinary searchdata structuresdivide and conquerdp
- Bracket Groups2700Codeforcesbrute forceconstructive algorithmsdpstring suffix structures
- Bracket Insertion2700Codeforcescombinatoricsdpmathtrees
- Bracket Xoring2600Codeforcesconstructive algorithmsgreedyimplementationmath
- Brand New Game2818CodeChef
- Brand New Problem2600Codeforcesbitmasksbrute forcedp
- Break2774CodeChef
- Break And Fix The Tree2827CodeChef
- Break This Array2722CodeChef
- Break Up2600Codeforcesdfs and similargraphs
- Break the Balance2698CodeChef
- Bring Balance2600Codeforcesbrute forceconstructive algorithmsgreedy
- Broken Queries2400Codeforcesbinary searchbitmasksbrute forceconstructive algorithms
- Broken Tree2600Codeforcesdfs and similardpgraphsgreedy
- Broken robot2400Codeforcesdpmathprobabilities
- Brukhovich and Exams2500Codeforcesbrute forcegreedyimplementationmath
- Bubble Cup hypothesis2400Codeforcesbitmasksconstructive algorithmsdpmath
- Bugged Sort2400Codeforcesdpgreedysortings
- Build Towers2688CodeChef
- Build XOR on a Segment2600Codeforcesbitmasksdp
- Building Tree2600Codeforcesdata structuresdivide and conquerdsugraphs
- Bullets and Enemies2752CodeChef
- Bunny Hops2632CodeChef
- Buses and People2400Codeforcesbinary searchdata structuressortings
- Button Lock2600Codeforcesflowsgraph matchingsgraphs
- Button Pressing2600Codeforcesbitmasksconstructive algorithmshashing
- Buy Low Sell High2400Codeforcesconstructive algorithmsdata structuresgreedy
- Buying Candies2825CodeChef
- Buying a New String2702CodeChef
- C+K+S2400Codeforcesconstructive algorithmsdfs and similargraphsgreedy
- CNF 22500Codeforcesconstructive algorithmsdfs and similargraphsgreedy
- Cactus Connectivity2700Codeforces
- Cactus Search2500Codeforcesinteractive
- Cactus Wall2400Codeforcesconstructive algorithmsdfs and similargraphsshortest paths
- Cactusophobia2400Codeforcesdfs and similarflows
- Call Center Schedule2659CodeChef
- Camping Groups2600Codeforcesdata structuressortings
- Candies and Stones2500Codeforcesdivide and conquerdp
- Candies for Children2600Codeforcesbrute forcemath
- Capitalism2700Codeforcesconstructive algorithmsdfs and similargraphsshortest paths
- Card Game2400Codeforcesbinary searchflowsgraphs
- Card Guessing2600Codeforcescombinatoricsdpprobabilities
- Cardboard Box2600Codeforcesdata structuresgreedy
- Cards2600Codeforcescombinatoricsdpmathnumber theory
- Carousel of Combinations2400Codeforcesbrute forcecombinatoricsdpmath
- Carry All Fruits2665CodeChef
- Carry Bed2872CodeChef
- Case of a Top Secret2500Codeforcesbinary searchimplementationmath
- Cat, Fox and Maximum Array Split2400Codeforcesbrute forceinteractivemath
- Cat, Fox and Swaps 2500Codeforcesgraphsmathsortings
- Catch the Mole(Easy Version)2500Codeforcesbinary searchdata structuresdfs and similarinteractive
- Catch the Mole(Hard Version)2600Codeforcesbinary searchdata structuresdfs and similardivide and conquer
- Caterpillar on a Tree2500Codeforcesdfs and similargraphsgreedyimplementation
- Catowice City2400Codeforces2-satdfs and similargraph matchingsgraphs