add leetcode: 96

Author: CodeWater404

Algorithm/src/leetCode/subject/number51_100/_96DifferentBinarySearchTrees.java

@@ -0,0 +1,21 @@
+package leetCode.subject.number51_100;
+
+/**
+ * @author ： CodeWater
+ * @create ：2022-08-14-23:41
+ * @Function Description ：96. 不同的二叉搜索树
+ */
+public class _96DifferentBinarySearchTrees {
+    class Solution {
+        public int numTrees(int n) {
+            int[] f = new int[n + 1];
+            f[0] = 1;
+            for( int i = 1 ; i <= n ; i++ ){
+                for( int j = 1 ; j <= i ; j++ ){
+                    f[i] += f[j - 1] * f[i - j];
+                }
+            }
+            return f[n];
+        }
+    }
+}