#题目: fruits = ["apple", "banana", "cherry"] _______________________ #答案: fruits = ["apple", "banana", "cherry"] fruits.append("orange") Use the insert method to add "lemon" as the second item in the fruits list.
ExampleGet your own Python Server Convert the tuple into a list to be able to change it: x = ("apple", "banana", "cherry")y = list(x)y[1] = "kiwi"x = tuple(y)print(x) Try it Yourself » Add ItemsSince tuples are immutable, they do not have a built-in append() ...
Using a Python list as a queue: queue = [] # Enqueue queue.append('A') queue.append('B') queue.append('C') print("Queue: ", queue) # Peek frontElement = queue[0] print("Peek: ", frontElement) # Dequeue poppedElement = queue.pop(0) ...
ExampleGet your own Python Server Append a DataFrame at the end of another DataFrame: importpandas as pd data1 = { "age": [16,14,10], "qualified": [True,True,True] } df1 = pd.DataFrame(data1) data2 = { "age": [55,40], ...
Python JavaScript Java C++ myFruits = ['banana','apple','orange'] myFruits.append('kiwi') Run Example » A Dynamic Array is an array that is able to change size, like it must for insert and remove operations. In such cases where the array changes size, we use ArrayList in Java ...
Hash Sets in Python are typically done by using Python's ownsetdata type, but to get a better understanding of how Hash Sets work we will not use that here. To implement a Hash Set in Python we create a classSimpleHashSet. Inside theSimpleHashSetclass we have a method__init__to initia...
Using a Python list as a stack: stack = [] # Push stack.append('A') stack.append('B') stack.append('C') print("Stack: ", stack) # Peek topElement = stack[-1] print("Peek: ", topElement) # Pop poppedElement = stack.pop() print("Pop: ", poppedElement) # Stack after Po...
0) # Pop from the start of the list for ind, val in enumerate(self.adj_matrix[u]): if not visited[ind] and val > 0: queue.append(ind) visited[ind] = True parent[ind] = u return visited[t] def edmonds_karp(self, source, sink)...