Category: c / c++
You have a set of tiles, where each tile has one letter tiles printed on it. Return the number of possible non-empty sequences of letters you can make. Example …
Task: Design a Data Structure (Container) that supports O(1) constant time in Adding, Removing and Getting a Random Element with Equal Probability. For example: // RandomDS.add(3) // RandomDS.add(4) // …
Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example 1: Input:nums = , …
Task: Write a function that takes a list of strings and prints them, one per line, right justified, in a rectangular frame. For example the list gets printed as: …
Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in …
