Can we specify variable field width in a scanf() format string? If possible how?

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Accepted Answer

All field widths are variable with scanf(). You can specify a maximum field width for a given
field by placing an integer value between the % and the field type specifier. (e.g. %64s). Such a
specifier will still accept a narrower field width. The one exception is %#c (where # is an integer). This reads EXACTLY # characters, and it is
the only way to specify a fixed field width with scanf().

Can we specify variable field width in a scanf() format string? If possible how?

Answer with Explanation