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Oct 3, 2014 · I am working in leetcode problems. I just solved the following problem: Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2.
2. I'm new to Java and I just started to do Leetcode - Two Sum. I found that except brute force solution, the common solution is using Hashmap. But I still cannot get it. For example, this works in my logic: public int[] twoSum(int[] nums, int target) {. HashMap<Integer, Integer> m = new HashMap<Integer, Integer>(); int[] res = new int[2];
Step 3: If number is less than or equal to 9, then check if the difference (9-the number) is available in the list (from current index + 1 to end of list). If the answer is yes, then you have a match. Step 4: Print the current index (item #1), and the new index for the remainder value of 9-the number.
May 4, 2015 · I'm trying to do a LeetCode Two Sum question: Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2.
Here's my solution for the LeetCode's Two Sum problem. Problem: 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 i...
The way the problem is most often phrased requires you to return the indices of the array, not the elements. All of these solutions could be modified to do that with O(n) time complexity and O(1) space complexity, using array.index(i), or O(1) time complexity and O(n) space complexity by first converting the array into a hashmap/dictionary and looking up the index of an element in the arr
Jan 6, 2020 · 19. Your code takes an array of numbers and a target number/sum. It then returns the indexes in the array for two numbers which add up to the target number/sum. Consider an array of numbers such as [1, 2, 3] and a target of 5. Your task is to find the two numbers in this array which add to 5. One way you can approach this problem is by looping ...
Aug 9, 2019 · I am attempting to solve the Two Sum Problem in C and have run into trouble with the final return statement. The code initially provided to me by LeetCode was a function called "int* twoSum" and the goal is to find the two indices in an array that produce the target number. The function lists a couple parameters that I assumed were provided in ...
METHOD 1. Naive approach: Use two for loops The naive approach is to just use two nested for loops and check if the sum of any two elements in the array is equal to the given target. Time complexity: O (n^2) // Time complexity: O(n^2) private static int[] findTwoSum_BruteForce(int[] nums, int target) {. for (int i = 0; i < nums.length; i++) {.
Mar 20, 2018 · Looking for some feedback on the Two Sum LeetCode problem. Looking for feedback on code style in general, use of var, variable naming and initialization, return placement, and any other feedback or optimizations I could make. Problem. Given an array of integers, return indices of the two numbers such that they add up to a specific target.
