note
ikegami
<c>
while (<FILE>) {
@zapschool = split (/\t/);
if (m/zaps/i) {
print NEWFILE "$zapschool[4]\n";
}
}
</c>
is slower than
<c>
while (<FILE>) {
if (m/zaps/i) {
@zapschool = split(/\t/);
print NEWFILE "$zapschool[4]\n";
}
}
</c>
which can be made more readable as
<c>
while (<FILE>) {
if (m/zaps/i) {
my $zapschool = (split(/\t/))[4];
print NEWFILE "$zapschool\n";
}
}
</c>
And the solution is
<c>
my %count;
while (<FILE>) {
if (m/zaps/i) {
my $zapschool = (split(/\t/))[4];
++$count{$zapschool};
}
}
foreach (keys(%count)) {
print NEWFILE "$_: $count{$_}\n";
}
</c>
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