diff options
| -rw-r--r-- | challenge-086/lubos-kolouch/perl/ch-1.pl | 11 | ||||
| -rw-r--r-- | challenge-086/lubos-kolouch/python/ch-1.py | 6 |
2 files changed, 6 insertions, 11 deletions
diff --git a/challenge-086/lubos-kolouch/perl/ch-1.pl b/challenge-086/lubos-kolouch/perl/ch-1.pl index 0603c9b929..232ff30037 100644 --- a/challenge-086/lubos-kolouch/perl/ch-1.pl +++ b/challenge-086/lubos-kolouch/perl/ch-1.pl @@ -22,18 +22,15 @@ sub is_pair_difference { # to avoid sorting and/or scanning through all pairs in the array # or double nested loop, - # I will convert the array to a hash, then check if the - # corresponding key exists + # I will convert the array to a hash and check while creating it my $arr = $$data{n}; my %h; for (@$arr) { - $h{$_} = 1; - } + $h{$_} = 1; - for my $x (keys %h) { - return 1 if $h{$x + $$data{a}}; - } + return 1 if ($h{$_ + $$data{a}}) or ($h{$_ - $$data{a}}); + } return 0; } diff --git a/challenge-086/lubos-kolouch/python/ch-1.py b/challenge-086/lubos-kolouch/python/ch-1.py index 0f284bf4c6..ffeda9b648 100644 --- a/challenge-086/lubos-kolouch/python/ch-1.py +++ b/challenge-086/lubos-kolouch/python/ch-1.py @@ -20,16 +20,14 @@ def is_pair_difference(n: list, a: int): """ # to avoid sorting and/or scanning through all pairs in the array # or double nested loop, - # I will convert the array to a hash, then check if the - # corresponding key exists + # I will convert the array to a hash and check it on the fly """ hash_keys = {} for number in n: hash_keys[number] = 1 - for x in hash_keys: - if hash_keys.get(x+a, 0): + if hash_keys.get(number+a, 0) or hash_keys.get(number-a, 0): return 1 return 0 |