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2541 - Gen Mat
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== Rezolvare == <syntaxhighlight lang="python" line="1"> # 2541 Gen Mat def verificare_restrictii(nr_linii): # functia de verificare a datelor de intrare if 2 <= nr_linii <= 15: return True else: return False def genmat(nr_linii): matrice = [] for i in range(0, nr_linii): # initializarea matricii patratice linie = [] for j in range(0, nr_linii): linie.append(0) matrice.append(linie) for linie in range(0, nr_linii): for coloana in range(0, nr_linii): # prima si ultima linie respectiv coloana if linie == 0 or linie == nr_linii - 1 or coloana == 0 or coloana == nr_linii - 1: matrice[linie][coloana] = linie + coloana + 1 + 1 # problema numeroteaza matricea de la 1 dar la noi incepe cu 0 deci adaugam 1 in consecinta for coloana in range(nr_linii-1-1, 0, -1): # parcurgem pe coloane, de la coada la cap pentru a putea calcula valorile ce trebuiesc introduse for linie in range(1, nr_linii-1): matrice[linie][coloana] = matrice[linie-1][coloana+1] + matrice[linie][coloana+1] + \ matrice[linie+1][coloana+1] # cei 3 vecini din urmatoarea coloana for linie in matrice: # afisarea matricii for element in linie: print(element, end=" ") print() if __name__ == '__main__': # ne asteptam ca datele de intrare sa fie gresite fapt care ar genera o eroare de tipul ValueError # pe care o tratam corespunzator try: numar_linii = int(input("Introduceti numarul n ")) # citirea lui n if verificare_restrictii(numar_linii): # validarea datelor de intrare print("Datele de intrare corespund restrictiilor impuse.") genmat(numar_linii) # apelul functiei de rezolvare else: print("Datele de intrare nu corespund restrictiilor impuse.") except ValueError: print("Datele de intrare nu corespund restrictiilor impuse.") </syntaxhighlight>
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