Operators：练习题

Which arithmetic operator is used to calculate the remainder after an integer division in pseudocode?

Consider the following expression:
\(result = (12 + 4) * 2 ** 3\)
What is the value of \(result\)?

In a logical test, which combination of Boolean values for \(A\), \(B\), and \(C\) will make the following expression evaluate to True?
\((A \text{ AND } B) \text{ OR } (\text{NOT } C)\)

Evaluate the following logic statement where \(P = True\) and \(Q = False\):
\(\text{NOT } (P \text{ AND } Q) \text{ AND } (P \text{ OR } Q)\)

What is the result of the following integer division and modulus operations in pseudocode?
\(x = 17 \text{ // } 5\)
\(y = 17 \text{ MOD } 5\)

State the value of result after the following code is executed:
result = 15 % 4

Evaluate the following logical expression where A = True and B = False:
NOT (A AND B)

Determine the final value of x after the following operations:
x = 10
y = 3
x = x // y ** 2

A developer is creating a login system. The system must check if the username is "admin" AND if the login attempts are less than 3.

(a) Write a boolean expression for this selection criteria using the variables user and attempts.
(b) If user = "admin" and attempts = 3, determine the final evaluation (True/False) of the expression.
(c) Explain the effect of changing the AND operator to an OR operator in this specific logic.