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1492 - Bunicul
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=== Explicație === Spațiul total liber este de <code>757</code> bytes. * Prima zonă liberă este cuprinsă între adresele <code>0 45</code>. Prima variabilă ocupă <code>30</code> bytes, spațiul alocat este intervalul <code>0,29</code>. * A doua variabilă are <code>20</code> bytes. Prima zonă liberă de dimensiunea dorită este cuprinsă în intervalul <code>101,120</code>. * Pentru a treia variabilă, care are <code>50</code> bytes, se va aloca memoria cuprinsă între <code>451,500</code>. * Pentru a patra variabilă se vor aloca <code>35</code> bytes între adresele <code>608,642</code>. * Pentru a cincea variabilă se alocă memorie în intervalul <code>803,862</code> (60 byes). * Pentru a șasea variabilă se alocă spațiul de memorie cuprins între <code>903,1002</code> (<code>100</code> bytes). * Pentru ultima variabilă se alocă spațiul de memorie de <code>100</code> bytes, cuprins între <code>1051,1150</code>. <syntaxhighlight lang="python" line="1"> def calculate_memory_allocation(M, N, occupied_intervals, R, variable_sizes): # Sort occupied intervals by starting address occupied_intervals.sort() # Calculate total available memory total_available = 0 free_intervals = [] # Find free intervals if occupied_intervals[0][0] > 0: free_intervals.append((0, occupied_intervals[0][0] - 1)) for i in range(N - 1): if occupied_intervals[i][1] + 1 < occupied_intervals[i + 1][0]: free_intervals.append((occupied_intervals[i][1] + 1, occupied_intervals[i + 1][0] - 1)) if occupied_intervals[-1][1] < M - 1: free_intervals.append((occupied_intervals[-1][1] + 1, M - 1)) for interval in free_intervals: total_available += interval[1] - interval[0] + 1 # Allocate memory for variables addresses = [] current_var_index = 0 for interval in free_intervals: start = interval[0] end = interval[1] while start <= end and current_var_index < R: var_size = variable_sizes[current_var_index] if start + var_size - 1 <= end: addresses.append((current_var_index, start)) start += var_size current_var_index += 1 else: break # If we allocated all variables if current_var_index == R: return total_available, addresses # If not all variables could be allocated max_address = addresses[-1][1] + variable_sizes[addresses[-1][0]] - 1 if addresses else -1 return total_available, len(addresses), max_address # Exemplu de utilizare: M = 1000 # Dimensiunea memoriei N = 3 # Numărul de zone ocupate occupied_intervals = [(100, 199), (300, 399), (500, 599)] # Intervalele ocupate R = 5 # Numărul de variabile declarate variable_sizes = [50, 150, 60, 80, 200] # Dimensiunea fiecărei variabile result = calculate_memory_allocation(M, N, occupied_intervals, R, variable_sizes) print(result) </syntaxhighlight>
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