diff --git a/recursion add no..cpp b/recursion add no..cpp
new file mode 100644
index 0000000..dc06563
--- /dev/null
+++ b/recursion add no..cpp	
@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+int sum(int k) {
+  if (k > 0) {
+    return k + sum(k - 1);
+  } else {
+    return 0;
+  }
+ return 0;
+}
+
+int main() {
+  int result = sum(10);
+  cout << result;
+  return 0;
+}