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3437 - Datorii 1
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== Rezolvare == <syntaxhighlight lang="python" line="1"> # 3437 - Datorii 1 from collections import defaultdict def validare(datorii_val1): # functia de validare a datelor de intrare if len(datorii_val1) > 6000: raise ValueError for X_val1, Y_val1, S_val1 in datorii_val1: if len(X_val1) > 20 or len(Y_val1) > 20 or S_val1 <= 0 or S_val1 > 10**6: raise ValueError file_out.write("Datele de intrare corespund restrictiilor impuse\n") def rezolvare(datorii_val1): # functia de rezolvare firme = defaultdict(lambda: [0, 0]) # dictionar cu valori default [0, 0] for X_val1, Y_val1, S_val1 in datorii_val1: firme[X_val1][0] += S_val1 # adaugam la suma datoriilor firmei X firme[Y_val1][1] += S_val1 # adaugam la suma pe care firma Y trebuie sa o primeasca for firma in sorted(firme.keys()): # sortam firmele lexicografic file_out.write(f"{firma} {firme[firma][0]} {firme[firma][1]}\n") if __name__ == '__main__': file_in = open("datoriiin.txt", "r") # declararea fisierelor file_out = open("datoriiout.txt", "w") # fisierul out trebuie declarat cu optiunea "w" (write) # din cauza datelor de intrare pot aparea 2 tipuri de erori, valueError sau IndexError pe care le tratam try: C = int(file_in.readline()) # citirea cerintei D = int(file_in.readline()) # citirea numarului de datorii datorii_val = [] for _ in range(D): X_val, _, Y_val, S_val = file_in.readline().split() S_val = int(S_val) datorii_val.append((X_val, Y_val, S_val)) validare(datorii_val) # apelul functiei de validare if C == 2: rezolvare(datorii_val) # apelul functiei de rezolvare except ValueError: file_out.write("Datele de intrare nu corespund restrictiilor impuse") except IndexError: file_out.write("Datele de intrare nu corespund restrictiilor impuse") </syntaxhighlight>
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