Write a program in C language: merge two sequence tables and find out the same elements of the two sequence tables to form a new sequence table...

This can be achieved using the following steps:

1. Declare a new sequence table to store the merged sequence table;
2. Traverse the two sequence tables, and put the elements in them into the new sequence table in turn;
3. Traverse the new sequence table again, find the same element, and store it in another sequence table;
4. Release the relevant memory space and complete the program.