How do you find all pairs of an integer array whose sum is equal to a given number in JS?

function arraypair(array,sum){ for (i = 0;i < array. length;i++) { var first = array[i]; for (j = i + 1;j < array. length;j++) { var second = array[j]; if ((first + second) == sum) { alert(‘First: ‘ + first + ‘ Second ‘ + second + ‘ SUM ‘ + sum); console.

How do you find the nearest sum of an array?

For example, for the array {19,23,41,5,40,36} and K=44, the closest possible sum is 23+19=42.

How do you find if there is a Subarray with sum equal to zero in Java?

Algorithm

1. Declare a Set.
2. Initialize sum to 0.
3. Traverse the array, while i < n (length of the array). Add sum to arr[i] and store it to sum. Check if any of the following conditions is true: sum==0 / arr[ i ]==0 / if Set contains the value of sum. if true, then return true. Add the sum to the Set.
4. Return false.

How do you find a pair in an array?

Solution Steps

1. We take a hash table of size equal to n.
2. We run a loop and scan over the array X[] for each X[i]. We check if targetSum – X[i] is present in the hash table or not. If yes, we have found the pair and return it true.
3. If didn’t find such a pair by end of the loop then, we return false.

How do you find the Subarray that has sum closest to zero or a certain value T?

Calculate the prefix sum array S[], where S[i] = A[0]+A[1]+… +A[i]. And then sort this S according to the element value, along with its original index information kept, to find subarray sum closest to 0, just iterate the S array and do the diff of the two neighboring values and update the minimum absolute diff.

How do you check if a Subarray is present in an array?

Simple Approach: A simple approach is to run two nested loops and generate all subarrays of the array A[] and use one more loop to check if any of the subarray of A[] is equal to the array B[]. Efficient Approach : An efficient approach is to use two pointers to traverse both the array simultaneously.

How do you find the sum of two sorted arrays?

Given two sorted arrays and a number x, find the pair whose sum is closest to x and the pair has an element from each array . We are given two arrays ar1 [0…m-1] and ar2 [0..n-1] and a number x, we need to find the pair ar1 [i] + ar2 [j] such that absolute value of (ar1 [i] + ar2 [j] – x) is minimum.

How do you find the nearest Pair in a sorted array?

Given a sorted array and a number x, find a pair in array whose sum is closest to x. A simple solution is to consider every pair and keep track of closest pair (absolute difference between pair sum and x is minimum). Finally, print the closest pair.

How to count all pairs from two arrays whose sum is equal x?

The problem is to count all pairs from both arrays whose sum is equal to x . Note: The pair has an element from each array. Recommended: Please solve it on “ PRACTICE ” first, before moving on to the solution. Method 1 (Naive Approach): Using two loops pick elements from both the arrays and check whether the sum of the pair is equal to x or not.

How to find the minimum diff of a sorted array?

The following is a detailed algorithm. 1) Initialize a variable diff as infinite (Diff is used to store the difference between pair and x). We need to find the minimum diff. 2) Initialize two index variables l and r in the given sorted array.