Soloway's recurring rainfall: Difference between revisions
→{{header|Perl}}: Added Perl
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rainfall_problem()
</syntaxhighlight>
=={{header|Perl}}==
FWIW
<syntaxhighlight lang="perl" line>use strict;
use warnings;
use Scalar::Util qw(looks_like_number);
my ($periods, $accumulation, $rainfall);
sub so_far { printf "Average rainfall %.2f units over %d time periods.\n", ($accumulation / $periods) || 0, $periods }
while () {
while () {
print 'Integer units of rainfall in this time period? (999999 to finalize and exit)>: ';
$rainfall = <>;
last if looks_like_number($rainfall) and $rainfall and $rainfall == int $rainfall;
print "Invalid input, try again.\n";
}
(so_far, exit) if $rainfall == 999999;
$periods++;
$accumulation += $rainfall;
so_far;
}</syntaxhighlight>
{{out}}
<pre>Integer units of rainfall in this time period? (999999 to finalize and exit)>: raindrops
Invalid input, try again.
Integer units of rainfall in this time period? (999999 to finalize and exit)>: 2.00
Average rainfall 2.00 units over 1 time periods.
Integer units of rainfall in this time period? (999999 to finalize and exit)>: hail
Invalid input, try again.
Integer units of rainfall in this time period? (999999 to finalize and exit)>: 10**0
Invalid input, try again.
Integer units of rainfall in this time period? (999999 to finalize and exit)>: 1
Average rainfall 1.50 units over 2 time periods.
Integer units of rainfall in this time period? (999999 to finalize and exit)>:
Invalid input, try again.
Integer units of rainfall in this time period? (999999 to finalize and exit)>: 999999
Average rainfall 1.50 units over 2 time periods.</pre>
=={{header|Phix}}==
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