Yahoo India Web Search

Sign In

Search results

  1. www.geeksforgeeks.org › find-missing-elements-fromFind missing elements from an Array with duplicates

    Jan 17, 2023 · Given an array arr [] of size N having integers in the range [1, N] with some of the elements missing. The task is to find the missing elements. Note: There can be duplicates in the array. Examples: Input: arr [] = {1, 3, 3, 3, 5}, N = 5. Output: 2 4.

  2. www.geeksforgeeks.org › find-a-repeating-and-aMissing and Repeating in an Array - GeeksforGeeks

    • Using Visited Array
    • In-Place and Sum Formula
    • Making Two Math Equations
    • Using XOR
    Create a temp array visited of size n+1 with all initial values as false. Note that array values go upto n, that is why we have taken size as n+1.
    Traverse the input array arr, and do the following for each arr[i]
    Traverse visited and output ‘i’ corresponding to the element of array visited having value as false. (This is the missing number)

    See full list on geeksforgeeks.org

    Calculate the sum of the first size natural numbers. Traverse the array. While traversing, use the absolute value of every element as an index and make the value at this index negative to mark it visited and subtract this value from the missing variable. If something is already marked negative, then this is the repeating element. After traversing, ...

    See full list on geeksforgeeks.org

    Let x be the missing and y be the repeating element.
    Let N is the size of the array.
    Get the sum of all numbers using the formula S = N(N+1)/2
    Get the sum of square of all numbers using formula SSq = N(N+1)(2N+1)/6

    See full list on geeksforgeeks.org

    Let x and y be the desired output elements.
    Calculate the XOR of all the array elements.

    See full list on geeksforgeeks.org

  3. leetcode.com › problems › find-missing-and-repeatedFind Missing and Repeated Values - LeetCode

    The task is to find the repeating and missing numbers a and b. Return a 0-indexed integer array ans of size 2 where ans [0] equals to a and ans [1] equals to b. Example 1: Input: grid = [ [1,3], [2,2]] Output: [2,4] Explanation: Number 2 is repeated and number 4 is missing so the answer is [2,4].

  4. leetcode.com › problems › missing-numberMissing Number - LeetCode

    Missing Number - Given an array nums containing n distinct numbers in the range [0, n], return the only number in the range that is missing from the array. Example 1: Input: nums = [3,0,1] Output: 2 Explanation: n = 3 since there are 3 numbers, so all numbers are in the range [0,3]. 2 is the missing number in the range since it does not appear ...

  5. www.geeksforgeeks.org › find-lost-element-from-aFind lost element from a duplicated array - GeeksforGeeks

    Oct 16, 2023 · Given two arrays that are duplicates of each other except one element, that is one element from one of the array is missing, we need to find that missing element. Examples: arr2[] = {4, 5, 7, 9} 1 is missing from second array. arr2[] = {2, 3, 4, 5, 6} 6 is missing from first array.

    • 7 min

  6. www.techiedelight.com › find-missing-numberFind the missing number and duplicate elements in an array

    Sep 5, 2021 · Find the missing number and the duplicate element in linear time and without using any extra memory. For example, Input: arr [] = [4, 3, 6, 5, 2, 4] Output: The duplicate and missing elements are 4 and 1, respectively. Practice this problem.

  7. People also ask

  8. stackoverflow.com › questions › 590109Find all duplicates and missing values in a sorted array

    Suppose you have a sorted range (x to y) of values in an array. x = 3; y = 11; array == 3, 4, 5, 6, 7, 8, 9, 10, 11. But it is possible that some values are duplicated and some are missing, so you might have: array == 4, 5, 5, 5, 7, 8, 9, 10, 10.