120 lines
2.2 KiB
Python
120 lines
2.2 KiB
Python
import sys
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class Node:
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def __init__(self, text):
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self.text = text
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self.right = None
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self.left = None
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self.otazka = text.endswith("?")
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def para_stromov(lines, index):
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if index >= len(lines):
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raise ValueError("Chybna databaza")
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text = lines[index]
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if not text:
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raise ValueError("Chybna databaza")
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node = Node(text)
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index += 1
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if node.otazka:
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node.left, index = para_stromov(lines, index)
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node.right, index = para_stromov(lines, index)
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return node, index
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def pocet_nodov(node):
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if not node:
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return 0, 0
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if node.otazka:
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a_left, n_left = pocet_nodov(node.left)
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a_right, n_right = pocet_nodov(node.right)
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return 1 + a_left + a_right, n_left + n_right
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else:
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return 0, 1
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def main():
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lines = []
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while True:
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try:
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line = input()
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except EOFError:
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break
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line = line.rstrip("\r")
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if line == "":
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lines.append("")
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break
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lines.append(line)
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for line in sys.stdin:
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lines.append(line.rstrip("\r\n"))
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print("Expert zo zoo to vie.")
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if not lines:
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print("Chybna databaza")
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return
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try:
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prvi = lines.index("")
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except ValueError:
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print("Chybna databaza")
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return
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stromlines = lines[:prvi]
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vibir = [l.strip() for l in lines[prvi + 1 :] if l.strip() != ""]
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if not stromlines:
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print("Chybna databaza")
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return
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try:
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root, druhy = para_stromov(stromlines, 0)
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except Exception:
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print("Chybna databaza")
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return
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if druhy != len(stromlines):
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print("Chybna databaza")
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return
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n_pocet, a_pocet = pocet_nodov(root)
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print(f"Pocet otazok: {n_pocet}")
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print(f"Pocet odpovedi: {a_pocet}")
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print("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.")
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potocni = root
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viber_indx = 0
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while potocni.otazka:
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print(potocni.text)
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if viber_indx >= len(vibir):
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print("Koniec vstupu")
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return
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choice = vibir[viber_indx]
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viber_indx += 1
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if choice != "a" and choice != "n":
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print("Nerozumiem")
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return
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if choice == "a":
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potocni = potocni.left
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else:
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potocni = potocni.right
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print(potocni.text)
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print("Koniec")
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if __name__ == "__main__":
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main() |