Product of absolute differences of all pairs in a given array. combinations, we can easily generate all unique pairs in .


  •  Product of absolute differences of all pairs in a given array. Write a C program to search for a pair with the given difference in a sorted array using two-pointer technique. Sum of Absolute Differences in a Sorted Array - You are given an integer array nums sorted in non-decreasing order. Each pair [a, b] must satisfy a < b and the pair's difference must match the smallest absolute difference found in the array. Examples: Input: N = 8 Output: 3, 3 Explanation: 3 * 3 = 8 + 1 Input: N = 123 Output: 5, 25 Explanation: 5 * 25 = 123 + 2. Oct 22, 2024 · Find the smallest absolute difference between any two elements in a given array of integers. For example if x=8 and we have array {13, 1,-8, 21, 0, 9,-54, 17, 31 Jan 5, 2025 · Given an array arr [] and a number target, find a pair of elements (a, b) in arr [], where a is less than or equal to b whose sum is closest to target. Example. [Naive Approach] Generate all Subsequences - O (2^n * k^2) Time and O (k) Space The idea is to generate all possible subsequences of size k from arr [] and compute the minimum absolute difference between any two elements in each subsequence. Jul 15, 2025 · Approach: The idea is to generate every possible pairs of the given array arr [] and find the product of the absolute difference of all the pairs. There are lots of resources on this site about finding minimum element of Problem Statement You are given an integer array nums sorted in non-decreasing order. Can you solve this real interview question? Minimize the Maximum Difference of Pairs - You are given a 0-indexed integer array nums and an integer p. Note that if the array is sorted, we can compute the absolute difference as a [i] a [i 1], because a [i] ≥ a [i 1]. pairs has the following parameter (s): int k: an integer, the target difference int arr [n]: an array of integers Returns int Can you solve this real interview question? K-diff Pairs in an Array - Given an array of integers nums and an integer k, return the number of unique k-diff pairs in the array. Below is the step by step approach: Traverse the array and select an element in each traversal. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows a, b are from arr a < b b - a equals to the minimum absolute difference of any two elements in arr Example 1: Input: arr = [4,2,1,3]… The absolute difference is the positive difference between two values a and b, is written |a-b| or |b-a| and they are equal. Dec 20, 2021 · Minimum Absolute Difference - LeetCode Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Jun 16, 2020 · Sum of absolute differences of all pairs in an array | GFG | Algorithm Explanation by alGOds alGOds 4. Each element result[i] should be equal to the sum of absolute differences between nums[i] and all other elements in the array. More specifically: You need to find two indices i and j where abs(i - j) >= x (the indices are at least x positions apart) Among all such Nov 27, 2021 · The goal is to find the most similar number in a for all elements in b because the minimum absolute difference can be reduced by replacing one of those pairs. import numpy as np X = np. Assume that all elements are distinct. Return the difference. Jul 10, 2024 · Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Jul 12, 2025 · Pre-compute primes using the Sieve of Eratosthenes, which provides an efficient way to find all prime numbers up to a given limit. * -x if x < 0. Return . Return 1 if any such pair exists else return 0. Much faster than brute force! Apr 23, 2023 · Given a sorted array of distinct elements, the task is to find the summation of absolute differences of all pairs in the given array. In all other iterations, the code will always update absValue with the smaller value between the current absValue and the absolute difference you calculate on each iteration. Use a nested loop to iterate over array pairs and calculate absolute differences only when the index difference is prime. Note: This is an excellent problem to learn problem solving using two pointers and hash table. Method 2: Using itertools. , an element having minimum difference comes first, and so on. For example, input arrays [1,3,5] and [2,4,6] would yield an output of 3. If and , . It uses a nested loop to iterate through the array elements to calculate the sum total of their absolute differences. Given an one-dimensional unsorted array A containing N integers. Each pair [a, b] should be listed as [a, b], where a<b. Find p pairs of indices of nums such that the maximum difference amongst all the pairs is minimized. e. Can you solve this real interview question? Minimum Absolute Difference - Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. There are n* (n-1)/2 such pairs and we are asked to print the kth (1 <= k <= n* (n-1)/2) as the smallest absolute difference among all these pairs. Your task is to build and return a new integer array result with the same length as nums. Mar 3, 2024 · Problem Formulation: The task is to find the minimum absolute sum difference between two arrays of equal length. Function Description Complete the pairs function below. Because it is the sum of the differences, the difference from the previous arrangement widens as much Jul 23, 2025 · Given an unsorted array and a number n, find if there exists a pair of elements in the array whose difference is n. The task is to print the absolute difference of all of the pairwise consecutive elements. Reduce computational overhead by avoiding redundant prime checks during pair comparisons. Finding a similar number for one element will take O(log n) using the bisect algorithm. Function Description Complete the Question: /* Given an array of distinct integers, input, find all pairs of elements with the minimum difference (that is the minimum of the absolute value of the difference of any two elements. Can you solve this real interview question? Count Number of Pairs With Absolute Difference K - Given an integer array nums and an integer k, return the number of pairs (i, j) where i < j such that |nums [i] - nums [j]| == k. combinations, we can easily generate all unique pairs in Nov 24, 2013 · Best way to find the number of pairs in an array whose difference is k Asked 11 years, 9 months ago Modified 4 years, 3 months ago Viewed 24k times Mar 10, 2024 · Problem Formulation: We aim to identify all the unique pairs of numbers within a given array where the absolute difference between them is a specific value k. The solution approach sorts the array first because the minimum absolute difference will always occur between adjacent elements in a sorted array. Suppose, two elements a [i] and a [j] (i != j) of a are paired with elements b [p] and b [q] of b respectively, then p should not be equal to q. Sep 12, 2025 · Given an unsorted integer array, print all pairs with a given difference `k` in it. Sep 3, 2022 · Find the smallest sum of the absolute differences of k pairs of an array Asked 2 years, 9 months ago Modified 2 years, 2 months ago Viewed 485 times http://www. Your task is to find the minimum absolute difference between any two elements in the array, with the constraint that these two elements must be at least x indices apart. Dec 1, 2022 · Given an array arr [] consisting of N integers, the task is to find the maximum sum of absolute differences between all distinct pairs of the triplet in the array. Python Exercises, Practice and Solution: Write a Python program to compute the summation of the absolute difference of all distinct pairs in a given array (non-decreasing order). If you start with an optimal matching and make every pair of matchings monotonic then you end up with an optimal monotonic matching. com Oct 18, 2017 · I have an unsorted array and I want to find all pairs in that array such that their difference (in absolute value) gives the x. The idea is to insert each array element `arr[i]` into a set. Jul 29, 2022 · A naive brute force approach is to calculate the value f (i, j) by iterating over all such pairs (i, j) and calculating the maximum absolute difference which is implemented below. A k-diff pair is an integer pair (nums[i], nums[j]), where the following are true: Apr 17, 2020 · Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Sum of Absolute Differences in a Sorted Array - LeetCode Wiki Home Cracking the Coding Interview Focused Training Contest LeetCode Wiki doocs/leetcode Home LeetCode LeetCode Jul 23, 2025 · Given two arrays of integers, compute the pair of values (one value in each array) with the smallest (non-negative) difference. Sep 19, 2023 · Given an array A [] of integers find sum of product of all pairs of array elements i. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows Jul 12, 2025 · Approach: In order to find all the possible pairs from the array, we need to traverse the array and select the first element of the pair. The absolute difference is the positive difference between two values and , is written or and they are equal. combinations With itertools. How is the sum of all pairs in an array calculated? Since array is sorted and elements are distinct, when we take sum of absolute difference of pairs each element in the i’th position is added ‘i’ times and subtracted ‘n-1-i’ times. About Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows Jun 28, 2021 · This means that any other value will be smaller than absValue. You are given an integer array nums that is sorted in non-decreasing order. Note: Return the pair in sorted order and if Then, the program is supposed to calculate the length between all these input integers (in this case from 4 to 7 and then from 7 to 3, which is 7) and print the sum. Your task is to pair Tagged with geeksforgeeks, solution, algorithms, array. Build and return an integer array result with the same length as nums such that result [i] is equal to the summation of absolute differences between nums [i] and all the other elements in the array. Mar 14, 2019 · 1200. In the first loop iteration, absValue is updated with the first absolute difference. Find K Pairs with Smallest Sums - You are given two integer arrays nums1 and nums2 sorted in non-decreasing order and an integer k. Given arrays arr1 and arr2, the goal is to compute the sum of absolute differences for each pair of elements, and then return the smallest possible sum after modifying at most one element from arr1. Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. May 24, 2025 · Python Exercises, Practice and Solution: Write a Python program to compute the summation of the absolute difference of all distinct pairs in a given array (non-decreasing order). Sort the array arr in non-decreasing order. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows Given any matching, you can make every pair of element matchings monotonic, and the cost can only go down. Given an array of n integers, find and print the minimum absolute difference between any two elements in the array. A k-diff pair is an integer pair (nums[i], nums[j]), where the following are true: Dec 29, 2024 · Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Jan 13, 2018 · I have have two arrays A and B which can contain any positive or negative integer. Jul 23, 2025 · Find the minimum difference between any two elements using sorting: The idea is to use sorting and compare every adjacent pair of the array Follow the given steps to solve the problem: Sort array in ascending order Initialize difference as infinite Compare all adjacent pairs in a sorted array and keep track of the minimum difference Dec 14, 2020 · Build and return an integer array result with the same length as nums such that result[i] is equal to the summation of absolute differences between nums[i] and all the other elements in the array. The differences between adjacent elements are: 2-1=1, 3-2=1, 4-3=1. These pairs need to be returned in ascending order, both inside the pairs and the list of pairs themselves. If there are n elements, the resultant array will contain n-1 elements. Here, we are assuming that all the elements in an array are positive. Write a C program to find all pairs with a given difference using nested loops and then eliminate duplicate pairs. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows Jul 15, 2025 · Maximum (12, 6, 6) = 12 Hence, the maximum of all minimum differences is 12. The absolute difference between two values, aaa and bbb, is calculated as ∣a − b∣, which is Sep 23, 2021 · Problem Statement:- Given an array of N integers, and an integer K, find the number of pairs of elements in the array whose sum is equal to K. Jun 11, 2025 · Given an array of distinct integers arr, the task is to find all pairs of elements which exhibit the smallest absolute difference amongst any two different elements in the array. Since each pair will be counted twice, we divide the final sum by 2. For example in {1,2,3,4} element at index 2 is arr [2] = 3 so all pairs having 3 as one element will be (1,3), (2,3) and (3,4), now when Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. , we need to find of product after execution of following pseudo code product = 0 An efficient solution for this problem needs a simple observation. Sep 28, 2021 · I am trying to calculate the sum of the differences of all possible pairs of an array (sum of difference first/second + difference first/third, difference second/first + difference second/third, Mar 4, 2024 · Output: 20 This code snippet defines a function sum_of_abs_diffs() that takes a sorted list and returns the sum of absolute differences between each pair of elements. The minimum difference is 1. You may assume that a and b are in small range Learn how to calculate the product of absolute differences between pairs of numbers using C++ code. LeetCode solutions in any programming language1685. For each pair [a, b], the following conditions should be met: Jul 23, 2025 · [Naive Approach] Generating all pairs - O (n^2) Time and O (1) Space The basic idea is to use two nested loops to generate all pairs in arr []. Method 1 Mar 5, 2023 · Write a function that takes in two non-empty arrays of integers, finds the pair of numbers (one from each array) whose absolute difference is closest to zero, and returns an array containing these two numbers, with the number from the first array in the first position. An efficient solution for this problem needs a simple observation. Given an array of distinct integers A[ ], write a program to find all pairs of elements with the minimum absolute difference of any two elements. The value of |x| is defined as: * x if x >= 0. Time Complexity: O (N2) Auxiliary Space: O (1) Efficient Approach: To optimize the above approach, use Two Pointers Aug 25, 2020 · Consider two 1d numpy arrays. Return the k pairs (u1, v1), (u2, v2), , (uk, vk) with the smallest sums. For each pair, if the absolute difference is equal to k, increment the count by 1. Build and return an integer array result with the same length as nums such that result[i] is equal to the summation of absolute differences between nums[i] and all the other elements in the array. For instance, given the input array [1, 5, 3, 4, 2] and a difference value k = 3, the desired output would be a list of pairs such as [(1, 4), (2, 5)], where each pair differs by 3. Say you have a sorted array like: a = [1, 3, 6] You want to compute: |1 - 3| + |1 - 6| + |3 - 6| = 2 + 5 + 3 = 10 Just loop through the array once and compute this. 83K subscribers 83 Oct 29, 2022 · Difference of all possible pairs of numbers in an array Asked 2 years, 11 months ago Modified 2 years, 11 months ago Viewed 768 times May 16, 2024 · Given an array arr [] of size n and an integer x, return 1 if there exists a pair of elements in the array whose absolute difference is x, otherwise, return - Can you solve this real interview question? Minimum Absolute Difference - Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. . Problem Description Given an array of distinct integers, find all pairs of elements with the minimum absolute difference of any two elements. In the example shown, the minimum absolute difference is 1, given by [[4, 5], [6, 5], [-1, 0]]. The absolute differences for these pairs are , and . 6K subscribers 395 Can you solve this real interview question? Count Array Pairs Divisible by K - Given a 0-indexed integer array nums of length n and an integer k, return the number of pairs (i, j) such that: * 0 <= i < j <= n - 1 and * nums [i] * nums [j] is divisible by k. Example There are three values that differ by : , , and . nextInt(); Sep 27, 2025 · Write a C program to find a pair of numbers with a given difference using a hash table for O (n) complexity. Given an array arr [] of N elements, the task is to find the product of absolute differences of all pairs in the given array. The task is to pair each element of array a to an element in array b, such that sum S of absolute differences of all the pairs is minimum. Aug 30, 2023 · Given an unsorted array and a number n, find if there exists a pair of elements in the array whose difference is n… Can you solve this real interview question? Find the Difference of Two Arrays - Given two 0-indexed integer arrays nums1 and nums2, return a list answer of size 2 where: * answer[0] is a list of all distinct integers in nums1 which are not present in nums2. Given an array of n integers and a target number, write a program to find whether a pair sum exists in the array or not. **def countpairs(x,length,sum): Jul 15, 2025 · The simplest approach to solve this problem is to generate all possible pairs from the given array, and for each pair, find the value of K and keep updating the maximum K obtained. Return a list of pairs in ascending order (with respect to pairs), each pair [a, b] follows a, b are from arr a < b b - a equals to the minimum absolute difference of any two elements in arr Example 1: Input: arr = [4,2,1,3 Jul 23, 2025 · We are given an array of size n containing positive integers. array([-43, 21, 4, 6, -1, 22, 8]) Y = np. Example 1 Input: arr[] = [5, 3, 2, 4] Output: [[2 Mar 18, 2021 · Given an integer N, the task is to find a pair such that whose product is N + 1 or N + 2 and absolute difference of the pair is minimum. Also, ensure no index appears more than once amongst the p pairs. You are given an array of distinct integers arr[] , write a program to find all pairs of elements such that their absolute difference is minimum. array([13, 5, -12, 0]) I want to find the value (s) from X that have the minimum absolute difference with the value (s) from Y. This code snippet helps you solve a problem on Codeforces and provides the result modulo m. Jul 23, 2025 · The basic idea is to compare each pair of elements in the array and find the pair (s) with the minimum absolute difference. Nov 25, 2023 · It can be calculated by multiplying differences instead of finding differences in all arrays. Jul 8, 2022 · Given two arrays a [] and b [] of equal length n. In other words, we need to check for a pair of elements in the array that sum exactly to the target value. More specifically, for each index i, you need to Jul 11, 2025 · Approach #2 : Using itertools Python itertools consist of permutation () method. Suppose the elements are {8, 5, 4, 3}. Examples : Input : A[] = {1, 3, 15, 11, 2} B[] = {23, 127, 235, 19, 8} Output : 3 That is, the pair (11, 8) Input : A[] = {10, 5, 40} B[] = {50, 90, 80} Output : 10 That is, the pair (40, 50) Brute Force Approach: The brute force approach to Aug 7, 2025 · Given an array arr [] consisting of distinct elements and a number x, arrange array elements according to the absolute difference with x, i. While solving a problem recently, I found a really useful trick for calculating the sum of absolute differences between all pairs in a sorted array. Then we need to pair this element with all the elements in the array from index 0 to N-1. Finally, print the maximum value of K obtained. Return a list of pairs in ascending order (with respect to pairs), each pair [i, j] follows : i , j are from arr[] i < j j - i equals to the minimum absolute difference of any two elements in arr[] . Sep 6, 2022 · Problem Statement You are given two arrays A and B of equal length N. Define a pair (u, v) which consists of one element from the first array and one element from the second array. The code: int d=sc. t3so. I've somehow managed to come to the point where the only thing i don't know how to do is how to actually sum all the pair differences and print it. Mar 28, 2025 · Given an unsorted array and an integer x, the task is to find if there exists a pair of elements in the array whose absolute difference is x. The minimum absolute difference is . If a = 3 and , b=2. Jul 28, 2020 · I want to find the differences between all closest-neigbour pairs and sum them, given the input array is even-length. Examples: Jan 7, 2024 · Given an array of integers of N elements. Note that the integers in the lists may be Therefore, all we need to do is sort the array and check the difference between each consecutive pair of values. The time complexity for this approach is O (n 2). |3–2| = |2–3| = 1. Pairwise consecutive pairs of an array of size N are (a [i], a [i+1]) for all i ranging from 0 to N-2 Mar 27, 2024 · The absolute value of the difference between the two numbers of any pair (x, y) is defined as the absolute difference between x and y. Here, to find absolute difference we essentially need a permutation of two elements. K diff Pairs in an Array | Leetcode 532 | Arrays Ayushi Sharma 48. Given an array of integers Given an array of integers and a target value, determine the number of pairs of array elements that have a difference equal to the target value. Examples: Input: arr[] = {5, 20, 3, 2, 50, 80}, n = 78 Output: Pair Found: (2, 80) Input: arr[] = {90, 70, 20, 80, 50}, n = 45 Output: No Such Pair The simplest method is to run two loops, the outer loop picks the first element (smaller element) and the inner loop looks for the Oct 24, 2024 · Given an array with distinct elements, the task is to find the pairs in the array such that a % b = k, where k is a given integer. Jul 23, 2025 · Naive Approach: The simplest approach to solve this problem is to generate all possible pairs of the given array and insert the absolute difference of each pair in a Set. So we return all pairs with difference 1: [[1,2], [2,3], [3,4]]. A C++ code that calculates the product of absolute differences between all pairs of elements in an array modulo m. Jul 15, 2025 · The task is to generate an array such that the element at each index in the new array is the sum of absolute differences of the corresponding element with all other elements of the given array. Absolute Difference of all pairwise consecutive elements in an array (C ) - In this problem we will see how we can get the absolute differences between the elements of each pair of elements in an array. This method takes a list as an input and return an object list of tuples that contain all permutation in a list form. Below is the implementation of the above approach: Mar 3, 2020 · Given an array, find the product of the absolute difference of every pair of integers. Minimum Absolute Difference Description Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. You are also given an integer B, find if there exists a pair of elements in the array whose difference is B. The final list should be in ascending order. Given an array of integers nums and an integer k, return the number of unique k-diff pairs in the array. Since array is sorted and elements are distinct, when we take sum of absolute difference of pairs each element in the i’th position is added ‘i’ times and subtracted ‘n-1-i’ times. Problem Description You have an array of integers nums (0-indexed) and an integer x. I have this code right now but it only gives the minimum difference of one pair. There are pairs of numbers: and . I want to calculate the sum of absolute difference which is given as where p and q are sizes of Array P and Q Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. The absolute difference between values at indices i and j is |a [i] - a [j]|. Given an array of integers, find the minimum absolute difference between any two elements in the array. * answer[1] is a list of all distinct integers in nums2 which are not present in nums1. feq4o gg tftjcv msd5blmk hie y9f 5uesp cgk1 pvvd 6mmwl
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