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Problems: 284 (total), users: 103245, attempts: 1709469, correct: 941421
ID Title Solved By Correct Ratio
BA10A Compute the Probability of a Hidden Path 772
BA10B Compute the Probability of an Outcome Given a Hidden Path 636
BA10C Implement the Viterbi Algorithm 483
BA10D Compute the Probability of a String Emitted by an HMM 326
BA10E Construct a Profile HMM 185
BA10F Construct a Profile HMM with Pseudocounts 176
BA10G Perform a Multiple Sequence Alignment with a Profile HMM 97
BA10H Estimate the Parameters of an HMM 158
BA10I Implement Viterbi Learning 124
BA10J Solve the Soft Decoding Problem 137
BA10K Implement Baum-Welch Learning 135
BA11A Construct the Graph of a Spectrum 176
BA11B Implement DecodingIdealSpectrum 128
BA11C Convert a Peptide into a Peptide Vector 182
BA11D Convert a Peptide Vector into a Peptide 175
BA11E Sequence a Peptide 104
BA11F Find a Highest-Scoring Peptide in a Proteome against a Spectrum 104
BA11G Implement PSMSearch 97
BA11H Compute the Size of a Spectral Dictionary 91
BA11I Compute the Probability of a Spectral Dictionary 89
BA11J Find a Highest-Scoring Modified Peptide against a Spectrum 65
BA1A Compute the Number of Times a Pattern Appears in a Text 2576
BA1B Find the Most Frequent Words in a String 2674
BA1C Find the Reverse Complement of a String 2552
BA1D Find All Occurrences of a Pattern in a String 2447
BA1E Find Patterns Forming Clumps in a String 2078
BA1F Find a Position in a Genome Minimizing the Skew 2060
BA1G Compute the Hamming Distance Between Two Strings 2136
BA1H Find All Approximate Occurrences of a Pattern in a String 1627
BA1I Find the Most Frequent Words with Mismatches in a String 1312
BA1J Find Frequent Words with Mismatches and Reverse Complements 1191
BA1K Generate the Frequency Array of a String 1064
BA1L Implement PatternToNumber 1264
BA1M Implement NumberToPattern 1213
BA1N Generate the d-Neighborhood of a String 1097
BA2A Implement MotifEnumeration 1109
BA2B Find a Median String 1128
BA2C Find a Profile-most Probable k-mer in a String 1003
BA2D Implement GreedyMotifSearch 929
BA2E Implement GreedyMotifSearch with Pseudocounts 819
BA2F Implement RandomizedMotifSearch 760
BA2G Implement GibbsSampler 598
BA2H Implement DistanceBetweenPatternAndStrings 880
BA3A Generate the k-mer Composition of a String 1193
BA3B Reconstruct a String from its Genome Path 1119
BA3C Construct the Overlap Graph of a Collection of k-mers 1034
BA3D Construct the De Bruijn Graph of a String 1011
BA3E Construct the De Bruijn Graph of a Collection of k-mers 915
BA3F Find an Eulerian Cycle in a Graph 718
BA3G Find an Eulerian Path in a Graph 661
BA3H Reconstruct a String from its k-mer Composition 754
BA3I Find a k-Universal Circular String 537
BA3J Reconstruct a String from its Paired Composition 526
BA3K Generate Contigs from a Collection of Reads 411
BA3L Construct a String Spelled by a Gapped Genome Path 401
BA3M Generate All Maximal Non-Branching Paths in a Graph 303
BA4A Translate an RNA String into an Amino Acid String 800
BA4B Find Substrings of a Genome Encoding a Given Amino Acid String 727
BA4C Generate the Theoretical Spectrum of a Cyclic Peptide 642
BA4D Compute the Number of Peptides of Given Total Mass 501
BA4E Find a Cyclic Peptide with Theoretical Spectrum Matching an Ideal Spectrum 514
BA4F Compute the Score of a Cyclic Peptide Against a Spectrum 401
BA4G Implement LeaderboardCyclopeptideSequencing 402
BA4H Generate the Convolution of a Spectrum 385
BA4I Implement ConvolutionCyclopeptideSequencing 260
BA4J Generate the Theoretical Spectrum of a Linear Peptide 375
BA4K Compute the Score of a Linear Peptide 322
BA4L Trim a Peptide Leaderboard 289
BA4M Solve the Turnpike Problem 169
BA5A Find the Minimum Number of Coins Needed to Make Change 855
BA5B Find the Length of a Longest Path in a Manhattan-like Grid 724
BA5C Find a Longest Common Subsequence of Two Strings 814
BA5D Find the Longest Path in a DAG 528
BA5E Find a Highest-Scoring Alignment of Two Strings 762
BA5F Find a Highest-Scoring Local Alignment of Two Strings 628
BA5G Compute the Edit Distance Between Two Strings 657
BA5H Find a Highest-Scoring Fitting Alignment of Two Strings 446
BA5I Find a Highest-Scoring Overlap Alignment of Two Strings 390
BA5J Align Two Strings Using Affine Gap Penalties 515
BA5K Find a Middle Edge in an Alignment Graph in Linear Space 287
BA5L Align Two Strings Using Linear Space 248
BA5M Find a Highest-Scoring Multiple Sequence Alignment 288
BA5N Find a Topological Ordering of a DAG 256
BA6A Implement GreedySorting to Sort a Permutation by Reversals 460
BA6B Compute the Number of Breakpoints in a Permutation 490
BA6C Compute the 2-Break Distance Between a Pair of Genomes 341
BA6D Find a Shortest Transformation of One Genome into Another by 2-Breaks 182
BA6E Find All Shared k-mers of a Pair of Strings 268
BA6F Implement ChromosomeToCycle 224
BA6G Implement CycleToChromosome 219
BA6H Implement ColoredEdges 197
BA6I Implement GraphToGenome 170
BA6J Implement 2-BreakOnGenomeGraph 171
BA6K Implement 2-BreakOnGenome 144
BA7A Compute Distances Between Leaves 260
BA7B Compute Limb Lengths in a Tree 299
BA7C Implement AdditivePhylogeny 274
BA7D Implement UPGMA 206
BA7E Implement the Neighbor Joining Algorithm 194
BA7F Implement SmallParsimony 138
BA7G Adapt SmallParsimony to Unrooted Trees 98
BA8A Implement FarthestFirstTraversal 191
BA8B Compute the Squared Error Distortion 194
BA8C Implement the Lloyd Algorithm for k-Means Clustering 218
BA8D Implement the Soft k-Means Clustering Algorithm 148
BA8E Implement Hierarchical Clustering 154
BA9A Construct a Trie from a Collection of Patterns 358
BA9B Implement TrieMatching 361
BA9C Construct the Suffix Tree of a String 270
BA9D Find the Longest Repeat in a String 354
BA9E Find the Longest Substring Shared by Two Strings 267
BA9F Find the Shortest Non-Shared Substring of Two Strings 222
BA9G Construct the Suffix Array of a String 334
BA9H Pattern Matching with the Suffix Array 256
BA9I Construct the Burrows-Wheeler Transform of a String 376
BA9J Reconstruct a String from its Burrows-Wheeler Transform 323
BA9K Generate the Last-to-First Mapping of a String 267
BA9L Implement BWMatching 239
BA9M Implement BetterBWMatching 206
BA9N Find All Occurrences of a Collection of Patterns in a String 215
BA9O Find All Approximate Occurrences of a Collection of Patterns in a String 205
BA9P Implement TreeColoring 99
BA9Q Construct the Partial Suffix Array of a String 169
BA9R Construct a Suffix Tree from a Suffix Array 124