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question:Given a binary tree, print out a post-order traversal of its nodes.

answer:def postorder_traverse(root): if root == null: return postorder_traverse(root.left) postorder_traverse(root.right) print(root.value)

question:Write a function to delete a node from a linked list given the pointer to the node to be deleted.

answer:// Given a pointer to a node, delete the node from the linked list // Do not return anything, changes are done in place. void deleteNode(Node *node) { Node* temp = node; Node* next = temp->next; node->data = next->data; node->next = next->next; free(next); }

question:Explain the concept of lazy loading

answer:Lazy loading is a design pattern which delays the loading of an object until it is needed. This optimization can improve the performance of web applications by decreasing the amount of data and code that needs to be loaded initially, and thereby reducing the application's memory footprint and startup time.

question:Write Python code to print the most frequent characters in a given string. String: I love apple

answer:def most_frequent_char(s): count = [0] * 256 max_count = 0 max_id = 0 for i in range(len(s)): count[ord(s[i])] += 1 if count[ord(s[i])] > max_count: max_count = count[ord(s[i])] max_id = i return s[max_id]

Released under the MIT License.

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