Added my works from 2022

alg_4_2.cpp

@@ -0,0 +1,17 @@
+#include <iostream>
+using namespace std;
+
+int fib(int n)
+{
+	if (n == 0) { return 1; }
+	if (n == 1) { return 1; }
+
+	return fib(n - 1) + fib(n - 2);
+}
+
+int main()
+{
+	int n; cin >> n;
+
+	cout << fib(n);
+}