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- Berland Local Positioning System2400Codeforcesconstructive algorithmsgreedyhashingimplementation
- Berland SU Computer Network2400Codeforcesconstructive algorithmsdfs and similargraphshashing
- Berland Traffic2700Codeforcesmathmatrices
- Berland.Taxi2500Codeforcesdata structures
- Bermart Ice Cream2700Codeforcesdata structuresdfs and similardivide and conquerdp
- Bermuda Triangle2400Codeforceschinese remainder theoremgeometryimplementationmath
- Best Edge Weight2700Codeforcesdata structuresdfs and similargraphstrees
- Best Subsequence2500Codeforcesbitmasksdfs and similarflowsgraph matchings
- Best Time to Buy and Sell Stock2500Codeforcesbinary searchbrute forcedata structuresdp
- Best board fill2760CodeChef
- Biased Judgement2739CodeChef
- Bicolored Segments2600Codeforcesdata structuresdpgraph matchingssortings
- Big Number2737CodeChef
- Big Wins! (hard version)2400Codeforcesbinary searchdata structuresdivide and conquerdsu
- Billetes MX (Easy Version)2500Codeforces2-satbinary searchcombinatoricsconstructive algorithms
- Billetes MX (Hard Version)2600Codeforcesbinary searchcombinatoricsdata structuresdsu
- Billiard2600Codeforcesgeometrynumber theory
- Binary Board2742CodeChef
- Binary Cards2700Codeforcesbrute force
- Binary Key2400Codeforcesdpgreedyimplementation
- Binary Land2608CodeChef
- Binary Matrix2500Codeforcesdsu
- Binary Movements2715CodeChef
- Binary Not Search and Queries2500Codeforcesdata structuresgreedyimplementation
- Binary Puzzle2700CodeChef
- Binary Search with One Swap2600Codeforcesbinary searchdivide and conquerdphashing
- Binary String Happiness2735CodeChef
- Binary String Wowee2400Codeforcescombinatoricsdpstrings
- Binary Strings are Simple?2700Codeforcesconstructive algorithmsimplementationinteractivenumber theory
- Binary Table2600Codeforcesbitmasksbrute forcedivide and conquerdp
- Binary Tree on Plane2400Codeforcesflowstrees
- Binary Trisection2831CodeChef
- Bindian Signalizing2400Codeforcesdata structures
- Bingo2600Codeforcesbitmaskscombinatoricsdpmath
- Bingo!2700Codeforcescombinatoricsmathprobabilities
- Binomial Fever2629CodeChef
- Bipartite Checking2500Codeforcesdata structuresdsugraphs
- Birthday2700Codeforcesgreedymathprobabilities
- Birthday2700Codeforcesdata structuresdfs and similardptrees
- BitBitJump2400Codeforces
- Bits And Pieces2600Codeforcesbitmasksdfs and similardpgreedy
- Bits of merry old England2700Codeforcesflowsgraphs
- Bitwise Operations on Circle2820CodeChef
- Black Cat Rush2700Codeforces*special
- Black and White2601CodeChef
- Black and White Tree2400Codeforcesdfs and similargreedytrees
- Black and White Tree2808CodeChef
- Black-white Board Game2832CodeChef
- Blocking Chips2400Codeforcesbinary searchconstructive algorithmsdfs and similargreedy
- Blocks2603CodeChef
- Blood Cousins Return2400Codeforcesbinary searchdata structuresdfs and similardp
- Bloodline2628CodeChef
- Blossom2400Codeforcesbinary searchcombinatoricsdpimplementation
- Blue and Red of Our Faculty!2600Codeforcesdivide and conquerdp
- Board Game2500Codeforcesdata structuresdfs and similar
- Bob's Beautiful Array2600Codeforcesbitmasksbrute forcegreedy
- Boboniu and String2600Codeforcesbinary searchgeometryternary search
- Bomb Blast2632CodeChef
- Bombing (Easy Version)2700Codeforcesbrute forcecombinatoricsconstructive algorithmsimplementation
- Bombs2400Codeforcesdata structurestwo pointers