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ISRO | ISRO CS 2015 | Question 74

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The for loop

for (i=0; i<10; ++i)
printf("%d", i&1);

(A) 0101010101
(B) 0111111111
(C) 0000000000
(D) 1111111111

Answer: (A)

Explanation: & operator is used in C to perform bitwise AND operation.

for (i=0; i<10; ++i)
printf("%d", i&1);
i=0: 0000 AND 0001 = 0000
i=1: 0001 AND 0001 = 0001
i=2: 0010 AND 0001 = 0000
i=3: 0011 AND 0001 = 0001
and so on till i=9.

Output printed will be = 0101010101
Option (A) is correct.

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Last Updated : 06 Apr, 2018
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