Apply fixes from StyleCI

Author: imajinyun

src/leetcode/GenerateParentheses.php

@@ -23,10 +23,10 @@ private static function addParenthesis(array &$ans, int $left, int $right, strin
         }
 
         if ($left > 0) {
-            self::addParenthesis($ans, $left - 1, $right, $s.'(');
+            self::addParenthesis($ans, $left - 1, $right, $s . '(');
         }
         if ($right > $left) {
-            self::addParenthesis($ans, $left, $right - 1, $s.')');
+            self::addParenthesis($ans, $left, $right - 1, $s . ')');
         }
     }
 }

src/leetcode/MissingRanges.php

@@ -14,15 +14,15 @@ public static function findMissingRanges(array &$nums, int $lower, int $upper):
         }
         foreach ($nums as $num) {
             if ($num > $lower) {
-                $ans[] = $lower.($num - 1 > $lower ? ('->'.($num - 1)) : '');
+                $ans[] = $lower . ($num - 1 > $lower ? ('->' . ($num - 1)) : '');
             }
             if ($num === $upper) {
                 return $ans;
             }
             $lower = $num + 1;
         }
         if ($lower <= $upper) {
-            $ans[] = $lower.($upper > $lower ? ('->'.$upper) : '');
+            $ans[] = $lower . ($upper > $lower ? ('->' . $upper) : '');
         }
 
         return $ans;

src/leetcode/SummaryRanges.php

@@ -23,7 +23,7 @@ public static function summaryRanges(array $nums): array
                 $i++;
             }
             if ($tmp !== $nums[$i]) {
-                $ans[] = $tmp.'->'.$nums[$i];
+                $ans[] = $tmp . '->' . $nums[$i];
             } else {
                 $ans[] = (string) $tmp;
             }

tests/leetcode/DegreeOfAnArray.php

@@ -7,7 +7,7 @@
 use leetcode\DegreeOfAnArray;
 use PHPUnit\Framework\TestCase;
 
-class DegreeOfAnArrayTest extends TestCase
+class DegreeOfAnArray extends TestCase
 {
     public function testFindShortestSubArray(): void
     {

tests/leetcode/LRUCacheTest.php

@@ -45,7 +45,7 @@ public function testLRUCacheRemove(): void
 
         self::assertNull($cache->get(4));
 
-        self::assertSame('hello world!', $cache->get(5).' '.$cache->get(6).$cache->get(7));
+        self::assertSame('hello world!', $cache->get(5) . ' ' . $cache->get(6) . $cache->get(7));
 
         self::assertTrue($cache->remove(5));
         self::assertTrue($cache->remove(6));

tests/leetcode/RangeSumQueryImmutable.php

@@ -7,7 +7,7 @@
 use leetcode\RangeSumQueryImmutable;
 use PHPUnit\Framework\TestCase;
 
-class RangeSumQueryImmutableTest extends TestCase
+class RangeSumQueryImmutable extends TestCase
 {
     private array $num = [];