Which of the following bit patterns represents the decimal value -24 in two\'s c

Question

Which of the following bit patterns represents the decimal value -24 in two's complement notation

NOTE: Space between digits is for readability

while n > 0 or n > 100:

generate an error message

while n > 0 and n < 100:

  generate an error message

while n < 0 and n > 100:

  generate an error message

while n < 0 or n > 100:

  generate an error message

D

X

C

None of the above

Suppose we want a program to request an integer (n) repeatedly until it is in the range 0 to 100 inclusive that is we want 0 <= n <= 100. Which of the following is the best input validation loop?

101 1011

110 1000

101 0011

111 1010

Suppose the letter A is placed in an empty queue, followed by the letters B C D  E and F in that order. Now suppose a letter is removed from the queue and letter G are inserted. Now suppose two letters are removed from the queue and letter X is inserted into the queue. If a letter is removed from the queue which letter would it be ?

Explanation / Answer

1) Which of the following bit patterns represents the decimal value -24 in two's

Answer: 110 1000

2) Suppose we want a program to request an integer (n) repeatedly until it is in the range 0 to 100 inclusive that is we want 0 <= n <= 100.

Which of the following is the best input validation loop?

Answer:

while n < 0 or n > 100:

generate an error message

3) Suppose the letter A is placed in an empty queue, followed by the letters B C D E and F in that order.

Now suppose a letter is removed from the queue and letter G are inserted.

Now suppose two letters are removed from the queue and letter X is inserted into the queue.

If a letter is removed from the queue which letter would it be ?

Answer: E is removed

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