Merge pull request neetcode-gh#3574 from Tetsuya3850/patch-14

Create 2610-convert-an-array-into-a-2d-array-with-conditions.java

Author: MHamiid

java/2610-convert-an-array-into-a-2d-array-with-conditions.java

@@ -0,0 +1,17 @@
+class Solution {
+    public List<List<Integer>> findMatrix(int[] nums) {
+        Map<Integer, Integer> count = new HashMap<>();
+        List<List<Integer>> res = new ArrayList<>();
+
+        for (int n : nums) {
+            int row = count.getOrDefault(n, 0);
+            if (res.size() == row) {
+                res.add(new ArrayList<>());
+            }
+            res.get(row).add(n);
+            count.put(n, count.getOrDefault(n, 0) + 1);
+        }
+
+        return res;
+    }
+}