Move the push down outside the y loop, use another variable like y0 to hold the minimum value
#!/usr/bin/env perl
use strict;
use warnings;
my @primes = (2,3,5,7,11,13,17) ;
my @start = (0..209);
my @results =();
foreach my $x (@primes){
my $y0=0;
my @best = @start;
my $count = scalar @best;
print "\nprime $x $count\n";
foreach my $y (0..$x-1){
my @new = grep { ($_+$y) % $x } @best;
my $new = scalar @new;
print " ${y}mod${x} = $new\n";
if ($new < @start){
@start = @new;
$y0 = $y;
}
}
push @results, "[$y0,$x]";
}
print "$_\n" for @start;
print join(',',@results),"\n";
poj
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