feixiangcode
diff --git a/‎Week_01/id_25/LeetCode_905_025.rb‎
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+# @param {Integer[]} a
+# @return {Integer[]}
+def sort_array_by_parity(a)
+    if a.length < 2
+        return a
+    end
+
+    left = []
+    right = []
+    a.length.times.each do
+        if a[0].even?
+            left << a.delete_at(0)
+        else
+            right << a.delete_at(0)
+        end
+    end
+    a = left + right
+end