Problems

List Tree
Bioinformatics Textbook Track

Rosalind is a platform for learning bioinformatics and programming through problem solving. Take a tour to get the hang of how Rosalind works.

Last win: wbv2101 vs. “Dictionaries”, 11 minutes ago
Problems: 284 (total), users: 104691
ID Title Solved By Correct Ratio
BA10A Compute the Probability of a Hidden Path 787
BA10B Compute the Probability of an Outcome Given a Hidden Path 647
BA10C Implement the Viterbi Algorithm 514
BA10D Compute the Probability of a String Emitted by an HMM 329
BA10E Construct a Profile HMM 186
BA10F Construct a Profile HMM with Pseudocounts 177
BA10G Perform a Multiple Sequence Alignment with a Profile HMM 98
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 138
BA11A Construct the Graph of a Spectrum 177
BA11B Implement DecodingIdealSpectrum 129
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 2618
BA1B Find the Most Frequent Words in a String 2721
BA1C Find the Reverse Complement of a String 2597
BA1D Find All Occurrences of a Pattern in a String 2481
BA1E Find Patterns Forming Clumps in a String 2119
BA1F Find a Position in a Genome Minimizing the Skew 2100
BA1G Compute the Hamming Distance Between Two Strings 2176
BA1H Find All Approximate Occurrences of a Pattern in a String 1659
BA1I Find the Most Frequent Words with Mismatches in a String 1333
BA1J Find Frequent Words with Mismatches and Reverse Complements 1208
BA1K Generate the Frequency Array of a String 1081
BA1L Implement PatternToNumber 1296
BA1M Implement NumberToPattern 1245
BA1N Generate the d-Neighborhood of a String 1117
BA2A Implement MotifEnumeration 1122
BA2B Find a Median String 1168
BA2C Find a Profile-most Probable k-mer in a String 1029
BA2D Implement GreedyMotifSearch 946
BA2E Implement GreedyMotifSearch with Pseudocounts 828
BA2F Implement RandomizedMotifSearch 795
BA2G Implement GibbsSampler 607
BA2H Implement DistanceBetweenPatternAndStrings 890
BA3A Generate the k-mer Composition of a String 1217
BA3B Reconstruct a String from its Genome Path 1138
BA3C Construct the Overlap Graph of a Collection of k-mers 1047
BA3D Construct the De Bruijn Graph of a String 1032
BA3E Construct the De Bruijn Graph of a Collection of k-mers 931
BA3F Find an Eulerian Cycle in a Graph 731
BA3G Find an Eulerian Path in a Graph 674
BA3H Reconstruct a String from its k-mer Composition 767
BA3I Find a k-Universal Circular String 546
BA3J Reconstruct a String from its Paired Composition 558
BA3K Generate Contigs from a Collection of Reads 417
BA3L Construct a String Spelled by a Gapped Genome Path 406
BA3M Generate All Maximal Non-Branching Paths in a Graph 310
BA4A Translate an RNA String into an Amino Acid String 816
BA4B Find Substrings of a Genome Encoding a Given Amino Acid String 738
BA4C Generate the Theoretical Spectrum of a Cyclic Peptide 654
BA4D Compute the Number of Peptides of Given Total Mass 512
BA4E Find a Cyclic Peptide with Theoretical Spectrum Matching an Ideal Spectrum 528
BA4F Compute the Score of a Cyclic Peptide Against a Spectrum 413
BA4G Implement LeaderboardCyclopeptideSequencing 412
BA4H Generate the Convolution of a Spectrum 393
BA4I Implement ConvolutionCyclopeptideSequencing 269
BA4J Generate the Theoretical Spectrum of a Linear Peptide 384
BA4K Compute the Score of a Linear Peptide 331
BA4L Trim a Peptide Leaderboard 299
BA4M Solve the Turnpike Problem 172
BA5A Find the Minimum Number of Coins Needed to Make Change 866
BA5B Find the Length of a Longest Path in a Manhattan-like Grid 736
BA5C Find a Longest Common Subsequence of Two Strings 826
BA5D Find the Longest Path in a DAG 533
BA5E Find a Highest-Scoring Alignment of Two Strings 766
BA5F Find a Highest-Scoring Local Alignment of Two Strings 634
BA5G Compute the Edit Distance Between Two Strings 661
BA5H Find a Highest-Scoring Fitting Alignment of Two Strings 448
BA5I Find a Highest-Scoring Overlap Alignment of Two Strings 391
BA5J Align Two Strings Using Affine Gap Penalties 540
BA5K Find a Middle Edge in an Alignment Graph in Linear Space 288
BA5L Align Two Strings Using Linear Space 249
BA5M Find a Highest-Scoring Multiple Sequence Alignment 288
BA5N Find a Topological Ordering of a DAG 258
BA6A Implement GreedySorting to Sort a Permutation by Reversals 463
BA6B Compute the Number of Breakpoints in a Permutation 495
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 201
BA6E Find All Shared k-mers of a Pair of Strings 269
BA6F Implement ChromosomeToCycle 225
BA6G Implement CycleToChromosome 220
BA6H Implement ColoredEdges 198
BA6I Implement GraphToGenome 170
BA6J Implement 2-BreakOnGenomeGraph 171
BA6K Implement 2-BreakOnGenome 145
BA7A Compute Distances Between Leaves 270
BA7B Compute Limb Lengths in a Tree 312
BA7C Implement AdditivePhylogeny 300
BA7D Implement UPGMA 213
BA7E Implement the Neighbor Joining Algorithm 200
BA7F Implement SmallParsimony 143
BA7G Adapt SmallParsimony to Unrooted Trees 102
BA8A Implement FarthestFirstTraversal 199
BA8B Compute the Squared Error Distortion 202
BA8C Implement the Lloyd Algorithm for k-Means Clustering 231
BA8D Implement the Soft k-Means Clustering Algorithm 156
BA8E Implement Hierarchical Clustering 162
BA9A Construct a Trie from a Collection of Patterns 363
BA9B Implement TrieMatching 364
BA9C Construct the Suffix Tree of a String 271
BA9D Find the Longest Repeat in a String 376
BA9E Find the Longest Substring Shared by Two Strings 271
BA9F Find the Shortest Non-Shared Substring of Two Strings 225
BA9G Construct the Suffix Array of a String 336
BA9H Pattern Matching with the Suffix Array 270
BA9I Construct the Burrows-Wheeler Transform of a String 380
BA9J Reconstruct a String from its Burrows-Wheeler Transform 326
BA9K Generate the Last-to-First Mapping of a String 269
BA9L Implement BWMatching 241
BA9M Implement BetterBWMatching 207
BA9N Find All Occurrences of a Collection of Patterns in a String 216
BA9O Find All Approximate Occurrences of a Collection of Patterns in a String 213
BA9P Implement TreeColoring 100
BA9Q Construct the Partial Suffix Array of a String 170
BA9R Construct a Suffix Tree from a Suffix Array 124