def findInsertLocation(self):
if self.isEmpty():
return self.root
q = myQueue(LinkedList.Node(self.root))
while q.is_empty() == False:
n: BinarySearchTree.Node = q.dequeue().data
if n.hasLeft() and n.hasRight():
q.enqueue(LinkedList.Node(n.left))
q.enqueue(LinkedList.Node(n.right))
else:
return n
def bfs(self, startVertex, main_surface):
q = myQueue()
q.enqueue(LinkedList.Node(startVertex))
startVertex.visited = True
while not q.is_empty():
v = q.dequeue().data
neighbours = gg.neighbours(v)
for n in neighbours:
if not n.visited:
n.visited = True
q.enqueue(LinkedList.Node(n))
showGrid(main_surface, self)
def checkValidity(inp: str):
s = Stack()
for i in inp:
if i in openings:
s.push(LinkedList.Node(i))
elif i in closings:
if s.is_empty():
return False
if getOpposite(i) != s.pop().data:
return False
if s.is_empty():
return True
else:
return False
frame_rate = 500 / (t1 - t0)
t0 = t1
main_surface.fill((255, 255, 255))
if toggleFrameRateDisplay:
the_text = my_font.render(
"Frame = {0}, rate = {1:.2f} fps".format(
frame_count, frame_rate), True, (0, 0, 0))
main_surface.blit(the_text, (10, 30))
if start:
startVertex = gg.vertices.head
for i in range(SQUARE_SIZE * GRID_VERTEX_SIZE + GRID_VERTEX_SIZE):
startVertex = startVertex.next
q = myQueue()
q.enqueue(LinkedList.Node(startVertex))
startVertex.visited = True
while not q.is_empty():
v = q.dequeue().data
neighbours = gg.neighbours(v)
for n in neighbours:
if not n.visited:
n.visited = True
q.enqueue(LinkedList.Node(n))
main_surface.fill((255, 255, 255))
showGrid(main_surface, gg)
# pygame.time.delay(1)
pygame.display.update()
# fpsClock.tick(FPS)
elif i in closings:
if s.is_empty():
return False
if getOpposite(i) != s.pop().data:
return False
if s.is_empty():
return True
else:
return False
if __name__ == "__main__":
a = '[2+((3*4)+{2-4})][]'
print(checkValidity(a))
exit()
s = Stack(None, None)
s.display()
s.push(LinkedList.Node(12, None))
s.push(LinkedList.Node(7, None))
s.push(LinkedList.Node(79, None))
s.display()
print('\nPopped: {}'.format(s.pop()))
s.display()
print('\n')
print('\nPopped: {}'.format(s.pop()))
s.display()
print('\n')
print('\nPopped: {}'.format(s.pop()))
s.display()
print('\n')
class myQueue(LinkedList):
def __init__(self,
head: LinkedList.Node = None,
tail: LinkedList.Node = None):
super().__init__(head, tail)
def enqueue(self, node: LinkedList.Node):
self.insert_last(node)
def dequeue(self):
return self.remove_first()
def peek_front(self):
return self.peek_first()
def peek_back(self):
return self.peek_last()
if __name__ == "__main__":
queue = myQueue()
queue.enqueue(LinkedList.Node('F**k'))
queue.enqueue(LinkedList.Node('You'))
queue.enqueue(LinkedList.Node('Sharyar and Majid'))
queue.display()
queue.dequeue()
queue.display()