Official PYQ · 2019Q52Programming in CNAT2 marks

GATE CS 2019 Q52 — Programming in C

Consider the following C program:

#include <stdio.h>
int main() {
    float sum = 0.0, j=1.0, i=2.0;
    while (i/j > 0.0625) {
        j=j+j;
        sum=sum+i/j;
        printf("%f\n", sum);
    }
    return 0;
}

The number of times the variable sum will be printed, when the above program is executed, is _________

View worked solution

Answer: 5

We can trace the execution of the loop step-by-step. Note that the loop condition is $\frac{i}{j} > 0.0625$ , where $0.0625 = \frac{1}{16}$ . Initially, $i = 2.0$ , $j = 1.0$ , and $\text{sum} = 0.0$ .

Iteration	Condition Check ( $\frac{i}{j} > 0.0625$ )	New $j$ ( $j = j + j$ )	New $\text{sum}$ ( $\text{sum} + \frac{i}{j}$ )	Printed?
1	$\frac{2.0}{1.0} = 2.0 > 0.0625$ (True)	$2.0$	$1.0$	Yes (1st)
2	$\frac{2.0}{2.0} = 1.0 > 0.0625$ (True)	$4.0$	$1.5$	Yes (2nd)
3	$\frac{2.0}{4.0} = 0.5 > 0.0625$ (True)	$8.0$	$1.75$	Yes (3rd)
4	$\frac{2.0}{8.0} = 0.25 > 0.0625$ (True)	$16.0$	$1.875$	Yes (4th)
5	$\frac{2.0}{16.0} = 0.125 > 0.0625$ (True)	$32.0$	$1.9375$	Yes (5th)
6	$\frac{2.0}{32.0} = 0.0625 > 0.0625$ (False)	-	-	No (Loop terminates)

Thus, the printf statement inside the loop is executed exactly 5 times.

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Published 10 Oct 2026

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