You are given an array.Your task is to print the length of longest consecutive subsequence. A longest consecutive subsequence is such that next element differ from previous by 1.

If the list is [16, 3, 5, 19, 10, 14, 12, 0, 15] one possible answer is the subsequence [3, 5, 10, 12, 15], another is [3, 5, 10, 14, 15]. If the list has only one ...