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- Binary Subsequence Rotation2100Codeforcesbinary searchconstructive algorithmsdata structuresgreedy
- Binary Subsequence Value Sum2300Codeforcescombinatoricsdata structuresdpfft
- Biologist2300Codeforcesflows
- Bipartite Segments2300Codeforcesbinary searchdata structuresdfs and similardsu
- Birds2200Codeforcesdp
- Bitsetbaba and Power Grid2426CodeChef
- Bitwise Queries (Hard Version)2300Codeforcesbitmasksconstructive algorithmsinteractivemath
- Bitwise Slides2300Codeforcesbitmaskscombinatoricsdpmath
- Black and White Tree2100Codeforcesconstructive algorithmsdsugraphsgreedy
- Blackboard Fibonacci2100Codeforcesbrute forcemath
- Blackslex and Penguin Migration2200Codeforcesbrute forceinteractivemath
- Blackslex and Plants2200Codeforcesbitmasksdata structuresdpimplementation
- Blocks in a String2519CodeChef
- Blood Cousins2100Codeforcesbinary searchdata structuresdfs and similartrees
- Blueprint for Seating2100Codeforcescombinatoricsdivide and conquermath
- Boboniu Walks on Graph2300Codeforcesbrute forcedfs and similargraphshashing
- Bombing2100Codeforcesbinary searchdpprobabilities
- Book Game with Chef2429CodeChef
- Boredom2100Codeforcesdata structures
- Boring Segments2100Codeforcesdata structuressortingstreestwo pointers
- Bowls2200Codeforcesgeometryimplementation
- Boxed Like a Fish2200Codeforcesdfs and similardpgamesshortest paths
- Boxes And Balls2300Codeforcesdata structuresgreedy
- Bracket Substring2300Codeforcesdpstrings
- Bracket Walk2100Codeforcesdata structuresgreedystrings
- Brackets2300Codeforcescombinatoricsdpgreedy
- Brackets in Implications2200Codeforcesconstructive algorithmsgreedyimplementationmath
- Brain Network (hard)2200Codeforcestrees
- Break into Powers2535CodeChef
- Breaking Good2100Codeforcesdfs and similardpgraphsshortest paths
- Bribes2200Codeforcesdfs and similargraphstrees
- Bro Thinks He's Him2200Codeforcescombinatoricsdata structuresdivide and conquerdp
- Broken BST2100Codeforcesdata structuresdfs and similar
- Broken Heart 2574CodeChef
- Broken Monitor2100Codeforcesbrute forceconstructive algorithmsgreedyimplementation
- Bubbles2450CodeChef
- Bugged Robot2464CodeChef
- Build an Array2200Codeforcesbrute forceconstructive algorithmsdpgreedy
- Building an Amusement Park2300Codeforcesbinary searchgeometry
- Bulbo2100Codeforcesdpgreedy
- Bulmart2100Codeforcesbinary searchdfs and similar
- Buratsuta 32100Codeforcesbinary searchbrute forcedata structuresdivide and conquer
- Burglar Movements2470CodeChef
- Buying Land2402CodeChef
- Buying Order (Hard)2448CodeChef
- Byteland, Berland and Disputed Cities2200Codeforcesconstructive algorithmsgreedy
- CPI Crisis2449CodeChef
- Cactus2100Codeforcesdata structuresdfs and similardpgraphs
- Caesar Cipher2200Codeforces*special
- Caisa and Tree2100Codeforcesbrute forcedfs and similarmathnumber theory
- Cake Cutting2560CodeChef
- Calendar Ambiguity2200Codeforcesmathnumber theory
- Call During the Journey2100Codeforcesbinary searchbrute forcegraphsgreedy
- Can you do it better2594CodeChef
- Candidate walk2408CodeChef
- Candy Party (Hard Version)2100Codeforcesbitmasksconstructive algorithmsdpgreedy
- Cannon2200Codeforcesdata structuresgeometrysortings
- Canteen (Hard Version)2300Codeforcesbinary searchdata structuresdpflows
- Captains Mode2200Codeforcesbitmasksdpgames
- Card Bag2300Codeforcesdpmathprobabilities