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GATE | GATE-CS-2002 | Question 35
Consider the following algorithm for searching for a given number x in an unsorted array A[1.....n] having n distinct values:
1. Choose an i uniformly at random from 1..... n; 2. If A[i] = x then Stop else Goto 1;
Assuming that x is present in A, what is the expected number of comparisons made by the algorithm before it terminates ?
(A)
n
(B)
n - 1
(C)
2n
(D)
n/2
Answer
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