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Bioinformatics Textbook Track

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Last win: Timy vs. “Installing Python”, 10 minutes ago
Problems: 284 (total), users: 125212
ID Title Solved By Correct Ratio
BA10A Compute the Probability of a Hidden Path 978
BA10B Compute the Probability of an Outcome Given a Hidden Path 805
BA10C Implement the Viterbi Algorithm 749
BA10D Compute the Probability of a String Emitted by an HMM 419
BA10E Construct a Profile HMM 230
BA10F Construct a Profile HMM with Pseudocounts 219
BA10G Perform a Multiple Sequence Alignment with a Profile HMM 126
BA10H Estimate the Parameters of an HMM 195
BA10I Implement Viterbi Learning 156
BA10J Solve the Soft Decoding Problem 180
BA10K Implement Baum-Welch Learning 165
BA11A Construct the Graph of a Spectrum 202
BA11B Implement DecodingIdealSpectrum 151
BA11C Convert a Peptide into a Peptide Vector 216
BA11D Convert a Peptide Vector into a Peptide 203
BA11E Sequence a Peptide 126
BA11F Find a Highest-Scoring Peptide in a Proteome against a Spectrum 125
BA11G Implement PSMSearch 114
BA11H Compute the Size of a Spectral Dictionary 107
BA11I Compute the Probability of a Spectral Dictionary 107
BA11J Find a Highest-Scoring Modified Peptide against a Spectrum 75
BA1A Compute the Number of Times a Pattern Appears in a Text 3374
BA1B Find the Most Frequent Words in a String 3450
BA1C Find the Reverse Complement of a String 3261
BA1D Find All Occurrences of a Pattern in a String 3120
BA1E Find Patterns Forming Clumps in a String 2741
BA1F Find a Position in a Genome Minimizing the Skew 2702
BA1G Compute the Hamming Distance Between Two Strings 2815
BA1H Find All Approximate Occurrences of a Pattern in a String 2185
BA1I Find the Most Frequent Words with Mismatches in a String 1751
BA1J Find Frequent Words with Mismatches and Reverse Complements 1599
BA1K Generate the Frequency Array of a String 1396
BA1L Implement PatternToNumber 1634
BA1M Implement NumberToPattern 1570
BA1N Generate the d-Neighborhood of a String 1465
BA2A Implement MotifEnumeration 1463
BA2B Find a Median String 1534
BA2C Find a Profile-most Probable k-mer in a String 1375
BA2D Implement GreedyMotifSearch 1243
BA2E Implement GreedyMotifSearch with Pseudocounts 1125
BA2F Implement RandomizedMotifSearch 1219
BA2G Implement GibbsSampler 876
BA2H Implement DistanceBetweenPatternAndStrings 1184
BA3A Generate the k-mer Composition of a String 1646
BA3B Reconstruct a String from its Genome Path 1502
BA3C Construct the Overlap Graph of a Collection of k-mers 1477
BA3D Construct the De Bruijn Graph of a String 1369
BA3E Construct the De Bruijn Graph of a Collection of k-mers 1310
BA3F Find an Eulerian Cycle in a Graph 1075
BA3G Find an Eulerian Path in a Graph 1062
BA3H Reconstruct a String from its k-mer Composition 1041
BA3I Find a k-Universal Circular String 746
BA3J Reconstruct a String from its Paired Composition 775
BA3K Generate Contigs from a Collection of Reads 579
BA3L Construct a String Spelled by a Gapped Genome Path 573
BA3M Generate All Maximal Non-Branching Paths in a Graph 435
BA4A Translate an RNA String into an Amino Acid String 1051
BA4B Find Substrings of a Genome Encoding a Given Amino Acid String 999
BA4C Generate the Theoretical Spectrum of a Cyclic Peptide 848
BA4D Compute the Number of Peptides of Given Total Mass 713
BA4E Find a Cyclic Peptide with Theoretical Spectrum Matching an Ideal Spectrum 701
BA4F Compute the Score of a Cyclic Peptide Against a Spectrum 568
BA4G Implement LeaderboardCyclopeptideSequencing 551
BA4H Generate the Convolution of a Spectrum 540
BA4I Implement ConvolutionCyclopeptideSequencing 375
BA4J Generate the Theoretical Spectrum of a Linear Peptide 519
BA4K Compute the Score of a Linear Peptide 460
BA4L Trim a Peptide Leaderboard 420
BA4M Solve the Turnpike Problem 244
BA5A Find the Minimum Number of Coins Needed to Make Change 1152
BA5B Find the Length of a Longest Path in a Manhattan-like Grid 1017
BA5C Find a Longest Common Subsequence of Two Strings 1105
BA5D Find the Longest Path in a DAG 750
BA5E Find a Highest-Scoring Alignment of Two Strings 1025
BA5F Find a Highest-Scoring Local Alignment of Two Strings 876
BA5G Compute the Edit Distance Between Two Strings 887
BA5H Find a Highest-Scoring Fitting Alignment of Two Strings 631
BA5I Find a Highest-Scoring Overlap Alignment of Two Strings 547
BA5J Align Two Strings Using Affine Gap Penalties 800
BA5K Find a Middle Edge in an Alignment Graph in Linear Space 418
BA5L Align Two Strings Using Linear Space 360
BA5M Find a Highest-Scoring Multiple Sequence Alignment 420
BA5N Find a Topological Ordering of a DAG 410
BA6A Implement GreedySorting to Sort a Permutation by Reversals 575
BA6B Compute the Number of Breakpoints in a Permutation 612
BA6C Compute the 2-Break Distance Between a Pair of Genomes 417
BA6D Find a Shortest Transformation of One Genome into Another by 2-Breaks 259
BA6E Find All Shared k-mers of a Pair of Strings 332
BA6F Implement ChromosomeToCycle 306
BA6G Implement CycleToChromosome 300
BA6H Implement ColoredEdges 272
BA6I Implement GraphToGenome 238
BA6J Implement 2-BreakOnGenomeGraph 234
BA6K Implement 2-BreakOnGenome 201
BA7A Compute Distances Between Leaves 356
BA7B Compute Limb Lengths in a Tree 374
BA7C Implement AdditivePhylogeny 373
BA7D Implement UPGMA 255
BA7E Implement the Neighbor Joining Algorithm 229
BA7F Implement SmallParsimony 162
BA7G Adapt SmallParsimony to Unrooted Trees 117
BA8A Implement FarthestFirstTraversal 247
BA8B Compute the Squared Error Distortion 247
BA8C Implement the Lloyd Algorithm for k-Means Clustering 283
BA8D Implement the Soft k-Means Clustering Algorithm 204
BA8E Implement Hierarchical Clustering 206
BA9A Construct a Trie from a Collection of Patterns 466
BA9B Implement TrieMatching 445
BA9C Construct the Suffix Tree of a String 345
BA9D Find the Longest Repeat in a String 438
BA9E Find the Longest Substring Shared by Two Strings 319
BA9F Find the Shortest Non-Shared Substring of Two Strings 269
BA9G Construct the Suffix Array of a String 414
BA9H Pattern Matching with the Suffix Array 338
BA9I Construct the Burrows-Wheeler Transform of a String 493
BA9J Reconstruct a String from its Burrows-Wheeler Transform 420
BA9K Generate the Last-to-First Mapping of a String 328
BA9L Implement BWMatching 312
BA9M Implement BetterBWMatching 266
BA9N Find All Occurrences of a Collection of Patterns in a String 269
BA9O Find All Approximate Occurrences of a Collection of Patterns in a String 252
BA9P Implement TreeColoring 138
BA9Q Construct the Partial Suffix Array of a String 206
BA9R Construct a Suffix Tree from a Suffix Array 151