← Catalogo
KMP
PyJS

Speeding Up Motif Finding

String Algorithms

Pagina originale su rosalind.info

Descrizione

Il "failure array" (o funzione dei prefissi) è la struttura alla base dell'algoritmo di Knuth-Morris-Pratt (KMP), che velocizza la ricerca di motivi in una stringa. Per una stringa s di lunghezza n, il failure array P è un array di n interi in cui P[k] rappresenta la lunghezza del più lungo prefisso proprio di s[0:k+1] che è anche suffisso di s[0:k+1].

Given

Una stringa di DNA s (di lunghezza massima 100 kbp) in formato FASTA.

Return

Il failure array di s.

Sample Dataset

>Rosalind_87
CAGCATGGTATCACAGCAGAG

Sample Output

0 0 0 1 2 0 0 0 0 0 0 1 2 1 2 3 4 5 3 0 0

La mia esecuzione

08/24/2026 11:24:47

Input · dataset.txt

>Rosalind_9830
AAACAAAAATCGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCC
ATCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTAACTA
CACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTAACG
ACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAA
GGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGG
ACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACT
CGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGG
GTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATTATACCGTT
TTATTCTAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCG
GAATGTATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGGGAGC
CGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCC
GGGCGGACTCGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGG
TGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTACACCCGCGTGT
TTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTG
GAAGCTGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTT
TCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACTCG
GGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGTC
GGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTACACCC
GCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATT
ATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCT
GACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAAT
GTAACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGCCGGA
ATGTAAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGGG
AGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTGGAG
CCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCAACTACAC
CCGCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCG
GAAAGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTG
TTTTCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTG
GAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTT
CGACTACACCCGCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTT
GGTCGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCC
GGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGG
AAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGA
GGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCC
GGAATGTATCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTC
TAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGAACGAC
CCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTAACGACCC
CAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACC
CGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAACTACACCC
GCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGT
GAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCGGA
CTCGGGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTT
CGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCA
GATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCG
TGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCG
CGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAA
AGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGG
ACTCGGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACTC
GGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACTCGGGT
CCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGC
CGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGGGA
GCCGGAAAGGTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGCCGGAATGTATCG
GTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTCTACTACACCCG
CGTGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCG
GGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGTCGGTAGGTGA
GGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTT
TTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTC
GTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGC
GTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGG
AAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATACC
GTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTG
ACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATTATACCGTTTT
ATTCTTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAG
GTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGGT
GGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCT
GACGTTGGAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTT
TATTCTTCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTCTT
TAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAG
CCGGAAAGGTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGCCGGAATGTATCGG
TAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTT
TTCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATA
CCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAG
CTGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTT
TCGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTAAC
TACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAG
GTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGAGGGA
GTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAA
TGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCC
ATCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTAACTA
CACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGCCGGAATGTAGG
AGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTCGG
TAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGT
GAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACT
CGGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGC
TGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGC
CGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGC
CGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGA
CGTTGGAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGA
CTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGTTAATC
CGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTACTACACCC
GCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGA
AAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGC
GGACTCGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAG
GTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCGCG
TGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAG
GTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATT
ATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAACTACACCCGCGTGTTT
TCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTTTAATCCGGGCGGACTC
GGGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGA
ACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTTTA
ATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTACTACA
CCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAG
ATTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGG
TGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGAGGGAG
TTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTC
GAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTT
CGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCC
AGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCC
GCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATT
ATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATA
CCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGAC
GTTGGTTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTT
GGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATTA
ATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGAC
CCCAGATTATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAACTACACCC
GCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTAACGACCCC
AGATTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGC
GGACTCGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCG
GACTCGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGAT
TATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCGG
ACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAAAGGTGG
AAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCC
GGCCATTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTT
GGACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATT
CTTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTG
AGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCGGAC
TCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATAC
CGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCG
TTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGA
CGTTGGAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGG
AATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGG
CCATCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTA
CACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAAACGA
CCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTAACTAC
ACCCGCGTGTTTTCGGCCGGAATGTAACTACACCCGCGTGTTTTCGGCCGGAATGTATCG
GTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTATTCTTTAATCCGGG
CGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGT
GTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGG
TGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACT
CGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGA
AGCTGACGTTGGAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACC
GTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGT
CCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTT
TTATTCTTCGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGG
TTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGTTAATCCG
GGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCAACTACACCCGCG
TGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTAACGACCCCAGA
TTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATT
ATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATT
ATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATT
ATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGGTGG
AAGCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCG
GGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGAACGACCCCAGATTATACCGTTTTAT
TCTTTAATCCGGGCGGACTCGGGTCCGGCCAACTACACCCGCGTGTTTTCGGCCGGAATG
TAACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATT
CTACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGGGA
GCCGGAAAGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCG
CGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGGGAGCCGGAA
AGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGT
TTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGT
CGGTAGGTGAGGGAGTTTTTTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTACACC
CGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTTTAATCCG
GGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAAGCTGACGTTGGACTACACCCGC
GTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACT
CGGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCATCGGTAGGTGAGGGAGTTTT
TTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGAACGACCCCAGATTATACCGTTTTATT
CTAACGACCCCAGATTATACCGTTTTATTCTACTACACCCGCGTGTTTTCGGCCGGAATG
TATTAATCCGGGCGGACTCGGGTCCGGCCATTAATCCGGGCGGACTCGGGTCCGGCCAAC
TACACCCGCGTGTTTTCGGCCGGAATGTAGGAGCCGGAAAGGTGGAAGCTGACGTTGGAC
TACACCCGCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTTC
GGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCA
GATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTT
TCGGCCGGAATGTATTAATCCGGGCGGACTCGGGTCCGGCCAGGAGCCGGAAAGGTGGAA
GCTGACGTTGGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTT
TTCGGGAGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCC
AAACGACCCCAGATTATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAAA
CGACCCCAGATTATACCGTTTTATTCTTTAATCCGGGCGGACTCGGGTCCGGCCAAACGA
CCCCAGATTATACCGTTTTATTCTAACGACCCCAGATTATACCGTTTTATTCTTTAATCC
GGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAA
AGGTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGCCGGAATGTATTAATCCGGG
CGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTTTAATCCGGGCGG
ACTCGGGTCCGGCCATCGGTAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGG
CCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCT
GACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAGGGAGTTTTTTCGTCGG
TAGGTGAGGGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTAACTACACCC
GCGTGTTTTCGGCCGGAATGTAAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGA
AAGGTGGAAGCTGACGTTGGTCGGTAGGTGAGGGAGTTTTTTCGTTAATCCGGGCGGACT
CGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTT
TTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGTTTTTTCG
AACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTTGGGG
AGCCGGAAAGGTGGAAGCTGACGTTGGTTAATCCGGGCGGACTCGGGTCCGGCCAGGAGC
CGGAAAGGTGGAAGCTGACGTTGGACTACACCCGCGTGTTTTCGGCCGGAATGTAAACGA
CCCCAGATTATACCGTTTTATTCTTCGGTAGGTGAGGGAGTTTTTTCGTCGGTAGGTGAG
GGAGTTTTTTCGACTACACCCGCGTGTTTTCGGCCGGAATGTATCGGTAGGTGAGGGAGT
TTTTTCGTTAATCCGGGCGGACTCGGGTCCGGCCAAACGACCCCAGATTATACCGTTTTA
TTCTAACGACCCCAGATTATACCGTTTTATTCTGGAGCCGGAAAGGTGGAAGCTGACGTT
GGACTACACCCGCGTGTTTTCGGCCGGAA

… troncato (101.676 caratteri totali)

Output · run_log.txt

OK
0 1 2 0 1 2 3 3 3 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 1 2 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 1 2 3 4 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 2 0 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2 3 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2 3 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 2 3 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 2 3 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 2 3 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 0 1 2 0 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 2 0 0 1 0 0 0 0 1 0 1 0 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Esegui nel browser · Pyodide

Mostra il codice sorgente (problem.py)
#http://rosalind.info/problems/kmp/

def lettura(filename):
    with open(filename) as f:
        record = ""
        first = True
        for riga in f:
            riga = riga.rstrip("\n")
            if riga[0] == ">":
                if not first:
                    return record
                first = False
            else:
                record += riga
    return record

def failure_array(s):
    n = len(s)
    fail = [0] * n
    k = 0
    for i in range(1, n):
        while k > 0 and s[k] != s[i]:
            k = fail[k - 1]
        if s[k] == s[i]:
            k += 1
        fail[i] = k
    return fail

def main():
    s = lettura("dataset.txt")
    fail = failure_array(s)
    print(" ".join(str(v) for v in fail))

if __name__ == "__main__":
    # execute only if run as a script
    main()

Soluzione JavaScript

Esegui ora, live

Mostra il codice sorgente
// Speeding Up Motif Finding (Rosalind ID: KMP) - soluzione JavaScript
// indipendente, non una trascrizione di problem.py: stessa logica
// (parsing del primo record FASTA, poi calcolo del failure array alla
// Knuth-Morris-Pratt), riscritta in modo idiomatico per JS.
//
// Contratto: riceve il contenuto testuale di dataset.txt, restituisce
// l'output testuale (stessa forma dell'output Python).

// Estrae la sequenza del primo record FASTA (il file può contenerne
// altri dopo, ma qui ci interessa solo il primo).
function primaSequenzaFasta(testo) {
  const righe = testo.split("\n").map((r) => r.replace(/\r$/, ""));
  let record = "";
  let first = true;
  for (const riga of righe) {
    if (riga.startsWith(">")) {
      if (!first) break;
      first = false;
    } else {
      record += riga;
    }
  }
  return record;
}

function failureArray(s) {
  const n = s.length;
  const fail = new Array(n).fill(0);
  let k = 0;
  for (let i = 1; i < n; i++) {
    while (k > 0 && s[k] !== s[i]) {
      k = fail[k - 1];
    }
    if (s[k] === s[i]) {
      k += 1;
    }
    fail[i] = k;
  }
  return fail;
}

export default function solve(datasetText) {
  const s = primaSequenzaFasta(datasetText);

  if (!s) {
    throw new Error("Input non valido: nessuna sequenza FASTA trovata");
  }

  const fail = failureArray(s);
  return `${fail.join(" ")}\n`;
}