Which of the following situations could be implemented using a Stack?

a) cars waiting to pay and exit a parking garage
b) people who have appointments in the reception area of a doctor’s office
c) students passing through the serving line in a cafeteria
d) a person who wants to un-do several changes that were made to the document that she is editing.
e) none of the above


d) a person who wants to un-do several changes that were made to the document that she is editing.

Computer Science & Information Technology

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Answer the following statements true (T) or false (F)

1. To get a complete line of 70 or so character into a C-string is as simple as declaring a long enough C-string and then using the >> operator to extract the line from the input. 2. To read a character at a time, or to write a character at a time, declare a character variable ch and write this: ``` cin >> ch; ``` 3. Indexing for Standard string objects does not range check/ 4. You can assign a standard string to a C-string variable. 5. It is possible to use a standard string with a string member function as source for the strcpy or strcat functions.

Computer Science & Information Technology

Why did C++11 introduce the nullptr constant when we already have NULL?

What will be an ideal response?

Computer Science & Information Technology

A player is a type of application software that a computer uses to work with a specialized type of file, such as a PDF document.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

A(n) ________ virus is designed to infect multiple file types in an effort to fool antivirus software

Fill in the blank(s) with correct word

Computer Science & Information Technology