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Explanation- After compiling and running this program output is zero. Here, int i; is auto variable. auto is the default for function or block variables. auto int i is same as int i. auto is default hence it is never used. A default value of auto variable is unpredictable value or garbage value. While running this code value of 'i' takes as zero. While printing value of i^i. 0^0 =0. Here, '^' is bitwise XOR or exclusive OR. Result is calculated using table of exclusive OR. e.g void main() { int i=8,j=4; printf("%d",i^j); } Output: 12 Sapna 02-17-2017 03:35 AM

zero in c local variables are asigned with garbage value .but it is exor so lets take garbage value as 1 for example k then 1^1 is 0.so that it is 0. jb 07-15-2016 03:16 PM

WHAT A WRONG ANSWER The value must be defined before using it in C !! The answer will be "Debug err" Christopher 01-22-2015 09:40 PM

Too late here, of course it's 0.. ... rathelor 11-5-2014 10:48 AM

Unexpected, as we have a valid - altough uninitialized - variable with some garbage value. Plus: any decent compiler with high enough warning level would cry for that 'void main()'.. rathelor 11-5-2014 10:46 AM

i XOR i = 0 So even if i is not initialized (ie random value) ... result of i^i will be 0. The answer is correct. xx 10-30-2014 07:29 PM

Garbage value If we doesnt initialize the variable it took's the Garbage Value Suganya 10-12-2014 12:06 AM

correct answer in c the default value will be assigned so the answer is 0 intrest 10-9-2014 02:39 AM

correct answer is zero.becoz the default value auto variable is 0.whatever we declare a data its take as a auto varible. rajapandian 10-7-2014 12:42 AM

my opinion i think it is unexpected... it gives the garbage value.. samir 07-9-2014 02:18 AM

answer d- runtime error Come on, guys. It's Runtime error. You didn't have initialized the integer variable i. Federico 04-26-2014 01:56 PM

wrong answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! c does not assign a default value to a variable unless assigned. it shows a runtime error as i is not initialized. edwig 01-6-2014 02:28 AM

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