'commit'

TangDou/XiTi/1181.cpp

@@ -0,0 +1,16 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int f(int n) {
+    if (n == 1) return 1;
+    if (n == 2) return 2;
+    return dp(n - 1) + dp(n - 2);
+}
+
+int main() {
+    int N;
+    cin >> N;
+    cout << dp(N) << endl;
+    return 0;
+}