Given an Array "arr" of size "n", where arr[i] represents length of stick i. Now you had to choose 6 sticks such that you can create a sqaure out of it.\n\nOutput the maximum number of different squares you can create.\nNote:- Two ways are considered different if they use at least one different stick.\n\nInput:- \n```\n8\n4 5 1 5 1 9 4 5\n```\nOutput:-\n```\n3\n```\n\nExplanation:-\n```\ncombination 1:- 1, 2, 3, 4, 5, 7\ncombination 2:- 1, 3, 4, 5, 7, 8\ncombination 3:- 1, 2, 3, 5, 7, 8\n```\n\nConstraints:-\n```\n6 <= n <= 3000\n1 <= arr[i] <= 1e7\n```

Given an Array "arr" of size "n", where arr[i] represents length of stick i. Now you had to choose 6 sticks such that you can create a sqaure out of it.\n\nOutp