Problems

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: Adrianoms.fl vs. “Variables and Some Arithmetic”, 23 minutes ago
Problems: 284 (total), users: 127776
ID Title Solved By Correct Ratio
BA10A Compute the Probability of a Hidden Path 1014
BA10B Compute the Probability of an Outcome Given a Hidden Path 828
BA10C Implement the Viterbi Algorithm 767
BA10D Compute the Probability of a String Emitted by an HMM 437
BA10E Construct a Profile HMM 238
BA10F Construct a Profile HMM with Pseudocounts 229
BA10G Perform a Multiple Sequence Alignment with a Profile HMM 132
BA10H Estimate the Parameters of an HMM 204
BA10I Implement Viterbi Learning 163
BA10J Solve the Soft Decoding Problem 187
BA10K Implement Baum-Welch Learning 170
BA11A Construct the Graph of a Spectrum 209
BA11B Implement DecodingIdealSpectrum 158
BA11C Convert a Peptide into a Peptide Vector 224
BA11D Convert a Peptide Vector into a Peptide 211
BA11E Sequence a Peptide 134
BA11F Find a Highest-Scoring Peptide in a Proteome against a Spectrum 132
BA11G Implement PSMSearch 119
BA11H Compute the Size of a Spectral Dictionary 112
BA11I Compute the Probability of a Spectral Dictionary 113
BA11J Find a Highest-Scoring Modified Peptide against a Spectrum 79
BA1A Compute the Number of Times a Pattern Appears in a Text 3505
BA1B Find the Most Frequent Words in a String 3577
BA1C Find the Reverse Complement of a String 3386
BA1D Find All Occurrences of a Pattern in a String 3248
BA1E Find Patterns Forming Clumps in a String 2871
BA1F Find a Position in a Genome Minimizing the Skew 2822
BA1G Compute the Hamming Distance Between Two Strings 2930
BA1H Find All Approximate Occurrences of a Pattern in a String 2307
BA1I Find the Most Frequent Words with Mismatches in a String 1846
BA1J Find Frequent Words with Mismatches and Reverse Complements 1689
BA1K Generate the Frequency Array of a String 1477
BA1L Implement PatternToNumber 1716
BA1M Implement NumberToPattern 1650
BA1N Generate the d-Neighborhood of a String 1540
BA2A Implement MotifEnumeration 1548
BA2B Find a Median String 1629
BA2C Find a Profile-most Probable k-mer in a String 1457
BA2D Implement GreedyMotifSearch 1317
BA2E Implement GreedyMotifSearch with Pseudocounts 1200
BA2F Implement RandomizedMotifSearch 1295
BA2G Implement GibbsSampler 953
BA2H Implement DistanceBetweenPatternAndStrings 1252
BA3A Generate the k-mer Composition of a String 1719
BA3B Reconstruct a String from its Genome Path 1575
BA3C Construct the Overlap Graph of a Collection of k-mers 1551
BA3D Construct the De Bruijn Graph of a String 1441
BA3E Construct the De Bruijn Graph of a Collection of k-mers 1382
BA3F Find an Eulerian Cycle in a Graph 1150
BA3G Find an Eulerian Path in a Graph 1129
BA3H Reconstruct a String from its k-mer Composition 1106
BA3I Find a k-Universal Circular String 812
BA3J Reconstruct a String from its Paired Composition 841
BA3K Generate Contigs from a Collection of Reads 647
BA3L Construct a String Spelled by a Gapped Genome Path 639
BA3M Generate All Maximal Non-Branching Paths in a Graph 495
BA4A Translate an RNA String into an Amino Acid String 1108
BA4B Find Substrings of a Genome Encoding a Given Amino Acid String 1058
BA4C Generate the Theoretical Spectrum of a Cyclic Peptide 906
BA4D Compute the Number of Peptides of Given Total Mass 770
BA4E Find a Cyclic Peptide with Theoretical Spectrum Matching an Ideal Spectrum 762
BA4F Compute the Score of a Cyclic Peptide Against a Spectrum 626
BA4G Implement LeaderboardCyclopeptideSequencing 611
BA4H Generate the Convolution of a Spectrum 600
BA4I Implement ConvolutionCyclopeptideSequencing 428
BA4J Generate the Theoretical Spectrum of a Linear Peptide 575
BA4K Compute the Score of a Linear Peptide 516
BA4L Trim a Peptide Leaderboard 477
BA4M Solve the Turnpike Problem 295
BA5A Find the Minimum Number of Coins Needed to Make Change 1225
BA5B Find the Length of a Longest Path in a Manhattan-like Grid 1089
BA5C Find a Longest Common Subsequence of Two Strings 1175
BA5D Find the Longest Path in a DAG 820
BA5E Find a Highest-Scoring Alignment of Two Strings 1088
BA5F Find a Highest-Scoring Local Alignment of Two Strings 938
BA5G Compute the Edit Distance Between Two Strings 949
BA5H Find a Highest-Scoring Fitting Alignment of Two Strings 691
BA5I Find a Highest-Scoring Overlap Alignment of Two Strings 600
BA5J Align Two Strings Using Affine Gap Penalties 863
BA5K Find a Middle Edge in an Alignment Graph in Linear Space 479
BA5L Align Two Strings Using Linear Space 415
BA5M Find a Highest-Scoring Multiple Sequence Alignment 479
BA5N Find a Topological Ordering of a DAG 469
BA6A Implement GreedySorting to Sort a Permutation by Reversals 593
BA6B Compute the Number of Breakpoints in a Permutation 629
BA6C Compute the 2-Break Distance Between a Pair of Genomes 433
BA6D Find a Shortest Transformation of One Genome into Another by 2-Breaks 271
BA6E Find All Shared k-mers of a Pair of Strings 346
BA6F Implement ChromosomeToCycle 320
BA6G Implement CycleToChromosome 314
BA6H Implement ColoredEdges 286
BA6I Implement GraphToGenome 251
BA6J Implement 2-BreakOnGenomeGraph 246
BA6K Implement 2-BreakOnGenome 213
BA7A Compute Distances Between Leaves 368
BA7B Compute Limb Lengths in a Tree 383
BA7C Implement AdditivePhylogeny 391
BA7D Implement UPGMA 271
BA7E Implement the Neighbor Joining Algorithm 243
BA7F Implement SmallParsimony 170
BA7G Adapt SmallParsimony to Unrooted Trees 127
BA8A Implement FarthestFirstTraversal 257
BA8B Compute the Squared Error Distortion 257
BA8C Implement the Lloyd Algorithm for k-Means Clustering 292
BA8D Implement the Soft k-Means Clustering Algorithm 213
BA8E Implement Hierarchical Clustering 215
BA9A Construct a Trie from a Collection of Patterns 476
BA9B Implement TrieMatching 463
BA9C Construct the Suffix Tree of a String 359
BA9D Find the Longest Repeat in a String 450
BA9E Find the Longest Substring Shared by Two Strings 326
BA9F Find the Shortest Non-Shared Substring of Two Strings 278
BA9G Construct the Suffix Array of a String 424
BA9H Pattern Matching with the Suffix Array 353
BA9I Construct the Burrows-Wheeler Transform of a String 510
BA9J Reconstruct a String from its Burrows-Wheeler Transform 435
BA9K Generate the Last-to-First Mapping of a String 335
BA9L Implement BWMatching 318
BA9M Implement BetterBWMatching 280
BA9N Find All Occurrences of a Collection of Patterns in a String 277
BA9O Find All Approximate Occurrences of a Collection of Patterns in a String 255
BA9P Implement TreeColoring 141
BA9Q Construct the Partial Suffix Array of a String 209
BA9R Construct a Suffix Tree from a Suffix Array 154