push(@arrCompletedChains, $strChain);

[download]

As it says in perlsyn: 

    If any part of LIST is an array, "foreach" will get very
    confused if you add or remove elements within the loop
    body, for example with "splice".   So don't do that.

[download]

UNTESTED, but you could see if this is faster: 


use List::Util 'first';

# sort largest first
my @sorted = sort { length $b <=> length $a } @arrWorkingCompletedChai
+ns;
my %to_delete;
# remove shortest first
while ( my $next = pop @sorted ) {
    if ( first { index( $_, $next ) >= 0 } @sorted ) {
        ++$to_delete{ $next };
        }
    |

@arrWorkingCompletedChains = grep !$to_delete{ $_ }, @arrWorkingComple
+tedChains;

[download]

In reply to Re: Best method to eliminate substrings from array by jwkrahn
in thread Best method to eliminate substrings from array by catemp

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