Given a binary string s (a string consisting only of ‘0’ and ‘1’s). Return the number of substrings with all characters 1’s. Since the answer may be too large, …
Given an array of unique integers salary where salary is the salary of the employee i. Return the average salary of employees excluding the minimum and maximum salary. Example …
Implement a trie with insert, search, and startsWith methods. Example: Trie trie = new Trie(); trie.insert("apple"); trie.search("apple"); // returns true trie.search("app"); // returns false trie.startsWith("app"); // returns true trie.insert("app"); …
Let’s you have a list in Python: a = And you have another list in Python: b = You can concatenate two lists by simply using + operator, which …
Implement the class ProductOfNumbers that supports two methods: 1. add(int num) Adds the number num to the back of the current list of numbers. 2. getProduct(int k) Returns the …