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

Author: a93a

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

@@ -0,0 +1,16 @@
+class Solution {
+    fun findMatrix(nums: IntArray): List<List<Int>> {
+        val count = HashMap<Int, Int>()
+        val res = mutableListOf<MutableList<Int>>()
+
+        for (n in nums) {
+            var row = count[n] ?: 0
+            if (res.size == row)
+                res.add(mutableListOf<Int>())
+            res[row].add(n)
+            count[n] = (count[n] ?: 0) + 1
+        }
+
+        return res
+    }
+}