Print smallest integer from file using awk custom function?

[asad]

`awk` function looks like this in a file name `fun.awk`:


    {

    print f()
    }
    function f()

    {


    if(NR==1){s=$0}


    if($0<p)

    {s=$0}

    {p=$0}

     { return s}

    }

The contents of `awk.write`:

    1
    23
    32

The `awk` command is:

    awk -f fun.awk awk.write


but it print x3 times. why?
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