MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

ALGORITHMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following statements defines an algorithm?
A
Algorithm is an unordered sequence of ambiguous and well-defined instructions that perform some tasks and stops in finite time.
B
Algorithm is an ordered sequence of ambiguous and well-defined instructions that perform no task and stops in finite time.
C
Algorithm is an unordered sequence of unambiguous and well-defined instructions that perform some tasks and stops in infinite time.
D
Algorithm is an ordered sequence of unambiguous and well-defined instructions that perform some task and stops in finite time.
Explanation: 

Detailed explanation-1: -An algorithm is a sequence of unambiguous instructions for solving a problem, i.e., for obtaining a required output for any legitimate input in a finite amount of time [Levitin, p. 3].

Detailed explanation-2: -An algorithm is a set of instructions for solving a problem or accomplishing a task.

Detailed explanation-3: -Unambiguity: A perfect algorithm is defined as unambiguous, which means that its instructions should be clear and straightforward. Finiteness: An algorithm must be finite. Finiteness in this context means that the algorithm should have a limited number of instructions, i.e., the instructions should be countable.

Detailed explanation-4: -An algorithm is a strictly defined finite sequence of well-defined statements (often called instructions or commands) that provides the solution to a problem or to a specific class of problems for any acceptable set of input values (if there are any inputs).

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