What is the Big O efficiency for the expression n(1 + log n + n)?

a. O(n^2)
b. O(n+n log n + n^2)
c. O(1)
d. O(n log n)


a. O(n^2)

Computer Science & Information Technology

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A. syntax B. runtime C. logic D. processing

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Add a method getName(String phoneNumber) to the PhoneBook class.

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

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The process of obtaining the plaintext message from a ciphertext message without knowing the keys used to perform the encryption is known as __________.

A. cryptanalysis B. cryptology C. cryptography D. nonrepudiation

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