Best Python code snippet using autotest_python
priorityQueue.py
Source: priorityQueue.py
1class Node:2 def __init__(self, value, priority):3 self.value = value4 self.priority = priority5 def get_priority(self):6 return self.priority7 def get_value(self):8 return self.value9# we will be using min heap for this10class PriorityQueue:11 def __init__(self):12 self.values = []13 def enqueue(self, value, priority):14 new_node = Node(value, priority)15 self.insert(new_node)16 def insert(self, node):17 if len(self.values) <= 0:18 self.values.append(node)19 return20 self.values.append(node)21 index = len(self.values) - 122 parent_index = (index - 1) // 223 while self.values[index].get_priority() < self.values[parent_index].get_priority() and parent_index >= 0:24 self.values[parent_index], self.values[index] = self.values[index], self.values[parent_index]25 index = parent_index26 parent_index = (index - 1) // 227 def dequeue(self):28 return self.extract_min()29 def extract_min(self):30 if len(self.values) <= 0:31 return None32 if len(self.values) == 1:33 return self.values.pop()34 length = len(self.values) - 135 self.values[0], self.values[length] = self.values[length], self.values[0]36 return_node = self.values.pop()37 index = 038 while True:39 left_child = (2*index) + 140 right_child = (2 * index) + 241 if left_child < 0 or left_child >= length:42 return return_node43 if right_child < 0 or right_child >= length:44 return return_node45 # \ is for simplified operation, in python in expression if we wanna go to new line, we use \46 if self.values[index].get_priority() < self.values[left_child].get_priority() and self.values[index].get_priority() < self.values[right_child].get_priority():47 return return_node48 if self.values[index].get_priority() > self.values[right_child].get_priority() > self.values[left_child].get_priority():49 self.values[index], self.values[left_child] = self.values[left_child], self.values[index]50 index = left_child51 continue52 if self.values[index].get_priority() > self.values[left_child].get_priority() > self.values[right_child].get_priority():53 self.values[index], self.values[right_child] = self.values[right_child], self.values[index]54 index = right_child55 continue56 if self.values[index].get_priority() > self.values[left_child].get_priority():57 self.values[index], self.values[left_child] = self.values[left_child], self.values[index]58 index = left_child59 continue60 if self.values[index].get_priority() > self.values[right_child].get_priority():61 self.values[index], self.values[right_child] = self.values[right_child], self.values[index]62 index = right_child63 continue64 def returnQueue(self):65 return_heap = []66 for i in range(len(self.values)):67 value_priority_pair = {self.values[i].get_priority(): self.values[i].get_value()}68 return_heap.append(value_priority_pair)...
a1_test.py
Source: a1_test.py
...12queue.insert('H', 20)13queue.insert('U', -5)14queue.insert('X', -20)15queue.changepriority(3, 5)16print(queue.getoddlist().get_priority())17print(queue.getevenlist().get_item())18print(queue.getoddlist().get_next().get_priority())19print(queue.getevenlist().get_next().get_priority())20print(queue.getoddlist().get_next().get_next().get_priority())21print(queue.getevenlist().get_next().get_next().get_priority())22print(queue.getoddlist().get_next().get_next().get_next().get_priority())23print(queue.getevenlist().get_next().get_next().get_next().get_priority())24print(queue.getoddlist().get_next().get_next().get_next().get_next().get_priority())
...
a1_test2.py
Source: a1_test2.py
...13queue.insert('G', 0)14queue.insert('H', -88)15queue.insert('H', 99)1617print(queue.getoddlist().get_priority())18print(queue.getevenlist().get_priority())19print(queue.getoddlist().get_next().get_priority())20print(queue.getevenlist().get_next().get_priority())21print(queue.getoddlist().get_next().get_next().get_priority())22print(queue.getevenlist().get_next().get_next().get_priority())23print(queue.getoddlist().get_next().get_next().get_next().get_priority())24print(queue.getevenlist().get_next().get_next().get_next().get_priority())
...
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