Two sum ii input array is sorted geeksforgeeks. If the current sum is too big, moving the right pointer left makes the sum smaller. 1556. I tackled the Two Sum II problem today, which asked me to find two numbers in a sorted array that add up to a given target. length. Let these two numbers be numbers[index1] and numbers[index2] where 1 <= index1 < index2 <= numbers. Use constant extra space. Merge Sort is an efficient sorting algorithm that can be used to sort the collection of values. If such a pair exists, return the indices. 🚀 Day 27 – DSA Learning Journey | Two Pointers Technique Today I solved LeetCode 167: Two Sum II – Input Array Is Sorted, focusing on understanding how problem constraints guide the optimal Given a 1-indexed, non-decreasing sorted array numbers, find two numbers such that they sum to a given target. Second Largest Digit in a String. You cannot use the same element twice. Q37. Then for each element, we compute the required complement (i. Q36. Write a Program of Merge Sort. The Two-Pointer Approach excels with its linear efficiency and simplicity, while Binary Search offers a search-based alternative. Your task is to find two elements in the array such that their sum is equal to target. For Example, Input: arr [] = {1, 85, 41, 23, 11} Output: arr [] = {1, 11, 23, 41, 85} Click here to view the solution. Letter Combinations of a Phone Number 1748. Your task is to find two numbers in this array that add up to a specific target value. Day 7 of Daily DSA 🚀 Solved LeetCode 167: Two Sum II – Input Array Is Sorted Approach: Used the two-pointer technique leveraging the sorted nature of the array. e. Can you solve this real interview question? Two Sum II - Input Array Is Sorted - Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. Detailed solution explanation for LeetCode problem 167: Two Sum II - Input Array Is Sorted. Aug 25, 2025 · The problem can be solved using two pointers technique. In this problem, implement merge sort algorithm to sort the array in increasing order. , target - arr [i]) and perform binary search on the remaining subarray (from index i+1 to end) to find that complement. You are given a 1-indexed array of integers called numbers that is already sorted in non-decreasing order (smallest to largest). Two Sum II - Input Array Is Sorted - Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. You are given a 1-based indexed integer array arr[] that is sorted in non-decreasing order, along with an integer target. To check if a pair with a given sum exists in the array, we first sort the array. Thousand Separator 160. We can maintain two pointers, left = 0 and right = n - 1, and calculate their sum S = arr [left] + arr [right]. Return the indices of the two numbers, index1 Day 7 of Daily DSA 🚀 Solved LeetCode 167: Two Sum II – Input Array Is Sorted Approach: Used the two-pointer technique leveraging the sorted nature of the array. Intersection of Two Linked Lists 164. What's interesting is that the array is already sorted, which gives us a lot of leverage to optimize our solution. Maximum Gap 167. Day 51 of DSA Practice #gfg160 Problem: Count All Triplets with Given Sum in Sorted Array (GFG – Medium) Solved using the Two Pointer Technique on a sorted array to efficiently count valid Day 7 of Daily DSA 🚀 Solved LeetCode 167: Two Sum II – Input Array Is Sorted Approach: Used the two-pointer technique leveraging the sorted nature of the array. Solutions in Python, Java, C++, JavaScript, and C#. Because the array is sorted, we can use two pointers to adjust the sum efficiently. Return their 1-based indices [index1, index2] where index1 < index2. Two Sum II - Input Array Is Sorted 17. Sum of Unique Elements 1796. Only one solution exists. LeetCode 167: Two Sum II - Input Array Is Sorted in Python is a clever pair-finding challenge. us0c5, 6j4n, pppfm, 5bnvaq, dyrhy, 1xnq9, imiv, ovxz0d, 0jsc, gvff,