Write a program in C to remove duplicate elements from an array of N positive integers, having occurrence more than twice. For Example: Consider an array: int A[]= {1, 2, 3, 3, 2, 5, 2}; In above array A,

Occurrence of 2 is thrice, so need to be removed. ii. Occurrence of 3 is twice, so shall not be removed. Resultant array after removing duplicates will contain following elements: {1, 2, 3, 3, -1, 5, -1 }.