Method findMax

java/1095-find-in-mountain-array.java:19–33

(MountainArray array)

    }

    public int findMax(MountainArray array) {
        int left = 0;
        int right = array.length() - 1;

        while (left<=right) {
            int mid = left + (right - left)/2;
            if (array.get(mid) < array.get(mid + 1)) {
                left = mid + 1;
            } else {
                right = mid - 1;
            }
        }

        return left;
    }

    public int binarySearchLeft(MountainArray array, int target, int right) {
        int left = 0;