Weekly solutions in PHP

2 files changed, 28 insertions, 0 deletions

diff --git a/challenge-268/2colours/php/ch-1.php b/challenge-268/2colours/php/ch-1.php
new file mode 100644
index 0000000000..789c278b98
--- /dev/null
+++ b/challenge-268/2colours/php/ch-1.php
@@ -0,0 +1,18 @@
+<?php
+
+
+const PARENS = ['(', ')'];
+const BRACKETS = ['[', ']'];
+echo '@x = ';
+$x = json_decode(str_replace(PARENS, BRACKETS, fgets(STDIN)));
+echo '@y = ';
+$y = json_decode(str_replace(PARENS, BRACKETS, fgets(STDIN)));
+
+sort($x);
+sort($y);
+
+$expected_difference = $y[0] - $x[0];
+
+$all_expected = array_product(array_map(fn($a, $b) => $b - $a === $expected_difference, $x, $y));
+
+echo $all_expected ? $expected_difference : 'N/A';
diff --git a/challenge-268/2colours/php/ch-2.php b/challenge-268/2colours/php/ch-2.php
new file mode 100644
index 0000000000..2526cd6f61
--- /dev/null
+++ b/challenge-268/2colours/php/ch-2.php
@@ -0,0 +1,10 @@
+<?php
+
+const PARENS = ['(', ')'];
+const BRACKETS = ['[', ']'];
+echo '@ints = ';
+$ints = json_decode(str_replace(PARENS, BRACKETS, fgets(STDIN)));
+
+sort($ints);
+
+echo str_replace(BRACKETS, PARENS, json_encode(array_merge(...array_map(array_reverse(...), array_chunk($ints, 2)))));