b.py (330B)
1 import fileinput 2 from functools import cache 3 4 a = {} 5 with fileinput.input() as lines: 6 for line in lines: 7 v, l2 = line[:-1].split(': ') 8 a[v] = l2.split(' ') 9 10 @cache 11 def np(v, d, f): 12 if v == 'out': 13 return 1 if d and f else 0 14 return sum(np(w, d or v == 'dac', f or v == 'fft') for w in a[v]) 15 16 print(np('svr', False, False))