Write a method named LongestSortedSequence
that accepts an array of integers as a parameter and that returns the length of the longest sorted (nondecreasing) sequence of integers in the array.
For example, if a variable named array
stores the following values:
int[] array = {3, 8, 10, 1, 9, 14, -3, 0, 14, 207, 56, 98, 12};
then the call of LongestSortedSequence(array)
should return 4
because the longest sorted sequence in the array has four values in it (the sequence -3, 0, 14, 207).
Notice that sorted means nondecreasing, which means that the sequence could contain duplicates. For example, if the array stores the following values:
int[] array2 = {17, 42, 3, 5, 5, 5, 8, 2, 4, 6, 1, 19}
Then the method would return 5
for the length of the longest sequence (the sequence 3, 5, 5, 5, 8).
Your method should return 0
if passed an empty array.
Your method should return 1
if passed an array that is entirely in decreasing order or contains only one element.
Constraints:
You may not use any auxiliary data structures (arrays, lists, strings, etc.) to solve this problem.
Your method should not modify the array that is passed in.