public static void main(String[] args) {
        LargestMountain lm = new LargestMountain();
        int[] nums = {2, 1, 4, 7, 3, 2, 5};
        System.out.println(lm.longestMountain(nums));
    }
https://leetcode.com/problems/longest-mountain-in-array/description/
src/com/interview/array/LargestMountain.java