Question

all numbers of an array occur seven times only one occur 6 times find that element

Answer 1

Hey mate

Ur ans is

Given an array that contains odd number of occurrences for all numbers except for a few elements which are present even number of times. Find the elements which have even occurrences in the array in O(n) time complexity and O(1) extra space.

Assume array contain elements in the range 0 to 63.

Examples :

Input: [9, 12, 23, 10, 12, 12, 15, 23, 14, 12, 15]

Output: 12, 23 and 15

Input: [1, 4, 7, 5, 9, 7, 3, 4, 6, 8, 3, 0, 3]

Output: 4 and 7

Input: [4, 4, 10, 10, 4, 4, 4, 4, 10, 10]

Output: 4 and 10