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#!/usr/bin/env python3
from functools import reduce
from re import findall
from copy import deepcopy
import sys
# import numpy as np
filename = sys.argv[1] if len(sys.argv) == 2 \
else "in/" + sys.argv[0].split('/')[-1].rstrip(".py") + ".pzl"
data = open(filename).read()
lines = data.rstrip('\n').split('\n')
D = dict()
for line in lines:
l, r = line.split(':')
r = r.strip().split(' ')
if l in D:
assert False
D[l] = r
def dfs(start, end, visited, D, depth=0):
if start in visited:
return 0
visited.add(start)
if start == end:
return 1
s = 0
if start in D:
for node in D[start]:
s += dfs(node, end, visited.copy(), D, depth+1)
else:
if start != 'out':
print('end of path', start)
return s
res1 = dfs('you', 'out', set(), D)
# export graphviz
# for l in D:
# for r in D[l]:
# print(f"{l} -> {r}");
p1 = dfs('svr', 'fft' , set(['rmc', 'ibq', 'zdx', 'foc']), D)
p2 = dfs('fft', 'dac' , set(['iwg', 'kxp', 'fnk', 'you']), D)
p3 = dfs('dac', 'out' , set(), D)
res2 = p1 * p2 * p3
print('res1:', res1)
print('res2:', res2)
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