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1585 - Gen Mat 23
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== Rezolvare == <syntaxhighlight lang="python" line="1"> # 1585 Gen Mat 23 def verificare_restrictii(nr_linii): # functia de verificare a restrictiilor if 1 <= nr_linii <= 30: return True else: return False def genmat23(nr_linii): matrice = [] for i in range(0, nr_linii): # crearea matricii patratice linie = [] for j in range(0, nr_linii): linie.append(0) matrice.append(linie) i = 0 # i reprezinta startul unui chenar de 1 iar nr_linii - 1 va fi astfel sfarsitul acelui chenar while i < nr_linii-i: if i % 2 == 0: # numarand de la 0, 1 va fi introdus pe liniile 0, 2 ,4 etc adica pe linii si coloane pare for linie in range(i, nr_linii-i): # completam doar marginile cu 1 if linie == i or linie == nr_linii - 1: # prima si ultima linie for coloana in range(i, nr_linii-i): matrice[linie][coloana] = 1 else: # prima si ultima coloana matrice[linie][i] = 1 matrice[linie][nr_linii-i-1] = 1 i += 1 # trecem la urmatorul chenar for linie in matrice: # afisarea 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 numarului de linii if verificare_restrictii(numar_linii): # veridicarea restrictiilor print("Datele de intrare corespund restrictiilor impuse.") genmat23(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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