C++ Programming and Technical

How to control the number of chars read in a string by using scanf()?

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C++ Other Question

What will be the output of following program?

{
int i=0;
switch(i)
{
case 0:
i++;
printf("%d..",i);
case 1:
printf("%d..",i);
case 1:
printf("%d..",i);
}
}

Options
1) 1..1..0
2) 0..1..1
3) 1..1..1
4) None of These How to detect an end of a file?