Remove the nth node from the end of a singly linked list and return its head. For example, input: 1-2-3-4-5, and n = 2. Removing the second node from …
Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words. For example, given …
Write a function to reverse only the vowels of a string. Example: Given s = “hello”, return “holle”. A vowel is one of the following 10 letters (both uppercase …
Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negative integers, +, -, *, / operators and empty spaces . The integer division …
Dynamic Programming (DP) is one of the very important algorithm in Computer Science. Here is the simplest example of demonstrating the concept of DP if you want to tell …
Write a method that reverses the given input string. Example: Given s = “12345”, return “54321”. STL The C++ STL provides the reverse method that does the job. class …
