CookieRoute

Each level has a playing field with multiple striped cookie-cubes. Different direction striped cookies also drop from the top. To finish a level, you must link the cookies on the field with the falling ones.<|endoftext|># 1. Two Sum Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may not use the same index twice. Example: Given nums = [2, 7, 11, 15], target = 9, Because nums[0] + nums[1] = 2 + 7 = 9, return [0, 1]. # Solution To solve this problem, we can use a hashmap to store the values and their indices as we iterate through the array. Then, for each element in the array, we can check if the difference between the target and the current element exists in the hashmap. If it does, we have found our solution and can return the indices. If not, we add the current element and its index to the hashmap and continue iterating. This way, we only need to iterate through the array once, making the time complexity O(n). Here is an implementation in Java: ``` public int[] twoSum(int[] nums, int target) { // create a hashmap to store values and indices HashMap map = new HashMap<>(); // iterate through the array for (int i = 0; i < nums.length; i++) { // check if the difference between target and current element exists in the hashmap if (map.containsKey(target - nums[i])) { // if it does, return the indices return new int[] {map.get(target - nums[i]), i}; } else { // if not, add the current element and its index to the hashmap map.put(nums[i], i); } } // if no solution is found, return an empty array return new int[0]; } ``` The space complexity for this solution is O(n) as we need to store all the elements in the hashmap.<|endoftext|>Introducing the new and improved "Healthy Habits" app! This app is designed to help you develop and maintain healthy habits in your daily life. Whether you want to improve your physical health, mental well-being, or overall lifestyle, this app has everything you need to succeed. With a user-friendly interface and personalized features, the Healthy Habits app makes it easy to track your progress and stay motivated. Here are just a few of the features you can expect: 1. Customizable Goals: Set your own goals and track your progress towards achieving them. Whether it's drinking more water, exercising regularly, or getting enough sleep, this app allows you to set and monitor your own personal goals. 2. Daily Reminders: Never forget to take care