Merge remote-tracking branch 'origin/master'

zeta_cpp/24416.cpp

@@ -0,0 +1,37 @@
+#include <iostream>
+
+using namespace std;
+
+
+int cnt1, cnt2, f[42];
+
+int fib(int n) {
+    if (n == 1 or n == 2) {
+        cnt1++;
+        return 1;
+    } else return (fib(n - 1) + fib(n - 2));
+}
+
+int fibonacci(int n) {
+    return f[n];
+}
+
+int main() {
+
+    int n;
+
+    cin >> n;
+
+    fib(n);
+
+    f[1] = 1;
+    f[2] = 1;
+
+    for (int i = 3; i <= n; i++) {
+        f[i] = f[i - 1] + f[i - 2];
+        cnt2++;
+    }
+    cout << cnt1 << " " << cnt2 << endl;
+
+    return 0;
+}