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0304 - Secvente
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== Explicatie Rezolvare == Functia count_maximal_sequences() calculeaza numarul de secvente maximale cu elementele ordonate crescator din sirul de intrare. Folosim doua variabile, i si j, pentru a parcurge sirul. Variabila i marcheaza inceputul unei secvente, iar variabila j cauta finalul secventei. Atunci cand gasim finalul secventei, adaugam la numarul de secvente maximale lungimea secventei curente, adica j-i. Apoi setam variabila i la valoarea lui j pentru a cauta urmatoarea secventa. Functia validate_input() valideaza datele de intrare conform restrictiilor problemei. Returneaza True daca datele sunt corecte si False in caz contrar. In functia principala if __name__ == "__main__": citim datele de intrare din fisierul secvente.in. Apoi verificam daca datele sunt valide folosind functia validate_input(). Daca datele sunt valide, apelam functia count_maximal_sequences() pentru a calcula numarul de secvente maximale si scriem rezultatul in fisierul secvente.out. Afisam mesajul "Datele sunt introduse corect." daca totul a functionat bine. In caz contrar, afisam mesajul "Datele nu corespund restricțiilor impuse." sau "Nu exista fisierul de intrare!" daca fisierul de intrare nu exista.
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