Program to find the sum of all odd frequency elements in an array is discussed here. An array of integers is given as input and the sum of elements having odd frequency is found and produced as output. This means elements which repeat an odd number of times in the given array will be identified and the sum of these will be the expected output.
For example, consider an array arr = {1, 2, 4, 5, 6, 3, 1, 2, 3, 3}
Here, elements 1 and 2 repeats twice (even), whereas elements 4, 5, 6 are present only once (odd) and element 3 occurs thrice (odd). Hence,
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