Question

The following function is a part of some class which is used to find the smallest digit present in a number. There are some places in the code marked by ?1?, ?2?, ?3? which must be replaced by an expression/a statement so that the function works correctly.

int small_dig(int n)
{   int min=?1?;
    while(n!=0)
    {
    int q=n/10;
    int r=?2?*10;
    min=r>min ? ?3? : r;
    n=q;
    }
    return min;
} 
    

1. What is the expression or statement at ?1?
2. What is the expression or statement at ?2?
3. What is the expression or statement at ?3?

Answer 1

1. n
2. n%10 + 0
3. min

int small_dig(int n)
{
int min=n;
while(n!=0)
{
    int q=n/10;
    int r=n%10+0*10;
    min=r>min?min:r;
    n=q;
}
return(min);
}