Consider the following C-program fragment in which i, j and n are integer variables.
for (i = n, j = 0; i >0; i /= 2, j += i);
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Let val(j) denote the value stored in the variable j after termination of the for loop. Which one of the following is true?
(A) val(j) = 
(logn)
(B) vaI(j) = (sqrt(n))
(C) val(j) = (n)
(D) val(j) = (nlogn)
(A) A
(B) B
(C) C
(D) D
Answer: (C)
Explanation: The variable j is initially 0 and value of j is sum of values of i. i is initialized as n and is reduced to half in each iteration.
j = n/2 + n/4 + n/8 + .. + 1 = Θ(n)
Note the semicolon after the for loop, so there is nothing in the body.
Same as question 1 of https://www.geeksforgeeks.org/c-language-set-6/
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