add 2236

Author: fishercoder1534

README.md

@@ -16,6 +16,7 @@ _If you like this project, please leave me a star._ ★
 | 2244 |[Minimum Rounds to Complete All Tasks](https://leetcode.com/problems/minimum-rounds-to-complete-all-tasks/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2244.java)                                                                     || Medium                                                                        ||
 | 2243 |[Calculate Digit Sum of a String](https://leetcode.com/problems/calculate-digit-sum-of-a-string/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2243.java)                                                                     || Easy                                                                          ||
 | 2239 |[Find Closest Number to Zero](https://leetcode.com/problems/find-closest-number-to-zero/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2239.java)                                                                     || Easy                                                                          ||
+| 2236 |[Root Equals Sum of Children](https://leetcode.com/problems/root-equals-sum-of-children/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2236.java)                                                                     || Easy                                                                          ||
 | 2220 |[Minimum Bit Flips to Convert Number](https://leetcode.com/problems/minimum-bit-flips-to-convert-number/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2220.java)                                                                     || Easy                                                                          ||
 | 2215 |[Find the Difference of Two Arrays](https://leetcode.com/problems/find-the-difference-of-two-arrays/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2215.java)                                                                     || Easy                                                                          ||
 | 2210 |[Count Hills and Valleys in an Array](https://leetcode.com/problems/count-hills-and-valleys-in-an-array/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2210.java)                                                                     || Easy                                                                          ||

src/main/java/com/fishercoder/solutions/_2236.java

@@ -0,0 +1,11 @@
+package com.fishercoder.solutions;
+
+import com.fishercoder.common.classes.TreeNode;
+
+public class _2236 {
+    public static class Solution1 {
+        public boolean checkTree(TreeNode root) {
+            return root.val == root.left.val + root.right.val;
+        }
+    }
+}