1 files changed, 0 insertions, 14 deletions
diff --git a/cpp/96.cpp b/cpp/96.cpp
deleted file mode 100644
index a67a59a..0000000
--- a/cpp/96.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-class Solution {
-public:
-    // catalan number:
-    // f(n) = f(0) * f(n-1) + f(1) * f(n-2) + ... + f(n-1)*f(0)
-    // f(n) = 2(2n-1) * f(n-1) / (n+1)
-    // f(n) = C(2n, n) / (n+1)
-    int numTrees(int n) {
-        long long result = 1;
-        for (int i = 2; i <= n; i++) {
-            result = 2 * (2 * i - 1) * result / (i + 1);
-        }
-        return result;
-    }
-};