third attempt
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77de00fd23
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841655da18
@ -20,17 +20,24 @@ class FSA:
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else:
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self.transitions[state_from] = dict()
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self.transitions[state_from][symbol] = {state_to}
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def get_final_state(self, string):
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def get_final_state(self, string, start_state):
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current_state = self.initial_state
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current_state = start_state
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for symbol in string:
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current_state = self.transitions[current_state][symbol]
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try:
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for state in self.transitions[current_state][symbol]:
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current_state = self.get_final_states(string[1:], state)
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if current_state in self.final_states:
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return current_state
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except KeyError:
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return -1
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return current_state
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def add_final_state(self, state):
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self.final_states.add(state)
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def accepts(self, string):
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if self.get_final_state(string) in self.final_states:
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if self.get_final_state(string, self.initial_state) in self.final_states:
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return True
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else:
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return False
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@ -1,15 +1,13 @@
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import sys
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class NFA:
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class FSA:
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def __init__(self):
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self.initial_state = '0'
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self.final_states = set()
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self.transitions = dict()
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self.alphabet = set()
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def add_transition(self, state_from, state_to, symbol):
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if state_from in self.transitions.keys():
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if symbol not in self.transitions[state_from].keys():
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self.transitions[state_from][symbol] = {state_to}
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@ -18,36 +16,25 @@ class NFA:
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else:
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self.transitions[state_from] = dict()
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self.transitions[state_from][symbol] = {state_to}
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def add_final_state(self, state):
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self.final_states.add(state)
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def get_all_paths(self):
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paths = []
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stack = [('', '0')]
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while stack:
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current_path, current_state = stack.pop()
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if current_state in self.final_states:
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paths.append(current_path)
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if current_state in self.transitions:
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for symbol, states in self.transitions[current_state].items():
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stack.extend((current_path + symbol, state) for state in states)
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return sorted(paths)
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def get_final_states(self, string):
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current_states = {self.initial_state}
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for symbol in string:
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current_states = {state for current_state in current_states for state in self.transitions.get(current_state, {}).get(symbol, set())}
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return current_states
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def accepts(self, string):
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return any(final_state in self.final_states for final_state in self.get_final_states(string))
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nfa = NFA()
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table = open(sys.argv[1])
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for line in table:
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line = line.rstrip('\n')
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if len(line.split('\t')) == 3:
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a, b, c = line.split('\t')
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c = c.replace("'","")
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c = list(c)
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for x in c:
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nfa.add_transition(a, b, x)
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nfa.alphabet.add(x)
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elif len(line.split('\t')) == 1:
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nfa.add_final_state(line)
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else:
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assert False
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fsa = FSA()
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for line in sys.stdin:
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print("YES" if nfa.accepts(line.strip()) else "NO")
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parts = line.strip().split('\t')
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if parts == ['']: break
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[fsa.add_transition(parts[0], parts[1], parts[2]) for parts in [parts]] if len(parts) == 3 else fsa.add_final_state(parts[0])
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for path in fsa.get_all_paths():
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print(path)
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@ -1,9 +1,10 @@
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import sys
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import re
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for line in sys.stdin:
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numbers = re.match(r'^[a-ząćęłńóśźżA-ZĄĆĘŁŃÓŚŹŻ]([a-zA-ZąćęłńóśźżĄĆĘŁŃÓŚŹŻ]*[a-zA-ZąćęłńóśźżĄĆĘŁŃÓŚŹŻ])?$', line.replace("\n", ""), flags=re.IGNORECASE)
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if numbers:
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print('yes')
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else:
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print("no")
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def emo_case(s):
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p = re.compile(r'^([A-Z\u0104-\u017B]?([a-z\u0105-\u017C][A-Z\u0104-\u017B])+[a-z\u0105-\u017C]?)')
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return "yes" if p.match(s) else "no"
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for _, l in enumerate(sys.stdin, start=1):
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print(emo_case(l))
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@ -71,7 +71,7 @@ def does_task_match_index(dir, index):
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def get_tasks(index):
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all_tasks = Path('../djfz-2023-464933').glob('Task*')
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all_tasks = Path('../djfz-2023-s464933').glob('TaskC06')
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return [task for task in all_tasks if does_task_match_index(task, index)]
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