the output is undefined because c++ do not implicitly initialised the var

What will happen when the following code is run:
int x;
while(x<100)
{
cout<<x;
x++;
}

1) The computer will output "0123...99"

2) The computer will output "0123...100"

3) The output is undefined

Question Posted / rakesh

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Answer Posted / rakesh

the output is undefined
because c++ do not implicitly initialised the varible. it
gives garbage value for uninitialized variables

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