This program is a collection of essential functions and operations on linked lists, designed to efficiently manage linked list data structures, providing a range of functionalities from simple node addition to advanced statistical analyses.

• Creating the Structure: The app introduces a structure comprising links to the previous and next nodes, along with timestamp and value data fields.
• Initialization: Manual initiation involves allocating the first node and linking it to null for both previous and next nodes.

1. Add Node:

   • Appends values to the list, linking nodes appropriately.
   • Handles both an empty list and a populated one, traversing to insert nodes at the end.

2. Statistical Analysis:

   • 2.1 Median Adjustment:
     • Iterates over the list, adjusting for the median values according to a specified condition.
     • Deletes nodes where required, marked by a timestamp of -1.
   • 2.2 Median Replacement:
     • Replaces original values with the median of sublists of five elements.
     • Implements sorting and insertion into the main list.
   • 2.3 Neighboring Averages:
     • Averages values between neighboring nodes when the timestamp difference is between 100 and 1000.

   (Note: Function 2.4 is pending successful implementation.)

   • 2.5 Interval Analysis:
     • Utilizes minimum and maximum functions to determine intervals with a count of elements in the list.
     • Displays the intervals and the number of elements within them.

• Allocates the head of the list and initializes it to null.
• Reads the number of nodes and corresponding elements from the keyboard.
• Executes functions based on provided arguments.
• Statistics are displayed unless specified otherwise.
• Releases allocated memory at the end.

The program simplifies linked list management, offering versatile tools for manipulation and statistical analysis.