एक सिंगली लिंक्ड लिस्ट (singly linked list) में, लिस्ट के प्रत्येक नोड में मुख्य रूप से ___________ शामिल होते हैं।

What is the worst-case time complexity of inserting 'n' elements into an initially empty linked list such that the linked list remains sorted?

What are the contents of an initially empty stack (from bottom to top) after performing the following operations? PUSH(A); PUSH(B); PUSH(C); POP; PUSH(D); POP; POP; PUSH(E); PUSH(F); POP;