Runtime: 8 ms (Top 41.3%) | Memory: 44.12 MB (Top 6.5%)

Author: AnasImloul

scripts/algorithms/D/Divide Array Into Equal Pairs/Divide Array Into Equal Pairs.java

@@ -0,0 +1,13 @@
+// Runtime: 8 ms (Top 41.3%) | Memory: 44.12 MB (Top 6.5%)
+
+class Solution {
+    public boolean divideArray(int[] arr) {
+        HashMap<Integer, Integer> map = new HashMap<>();
+
+        for (int i : arr) map.put(i, map.getOrDefault(i, 0) + 1);
+        for (int i : map.keySet()) {
+            if (map.get(i) % 2 != 0) return false;
+        }
+        return true;
+    }
+}