Useful tips for everyday
Who enforce the PCI standards? The Standard results from a collaboration between the major payment brands (American Express, Discover, JCB, Mastercard and Visa), and is…
How do you construct a binary tree from inorder and preorder traversal? Construct Tree from given Inorder and Preorder traversals Pick an element from Preorder.…
Is Swift dictionary ordered? As Matt says, dictionaries (and sets) are unordered collections in Swift (and in Objective-C). This is by design. If you want…
How do I exclude multiple words in grep? To ignore the case when searching, invoke grep with the -i option. If the search string includes…
What is the time complexity of coin change problem using Dynamic Programming? Time Complexity: O(n^m)n = len(coins) Therefore, the runtime becomes exponential. Space Complexity: O(1)With…
What is the main benefit of dividing code into multiple files? Breaking the code into logical systems split across multiple files reduces the risk of…
How do I read a text file as specific data? There are three ways to read data from a text file. read() : Returns the…
Can you append to a list while iterating python? append() to append elements to a list while iterating over the list. Call len(obj) to get…
How does pattern matching work? Pattern Matching works by “reading” through text strings to match patterns that are defined using Pattern Matching Expressions, also known…
How do you remove elements from one list to another? Use list. remove() to remove the elements of a list from another list list_1 =…