solve: P07_03_팩토리얼

showpointer · showpointer · commit 0c2e8ea54fec · 2021-10-30T19:25:44.000+09:00
diff --git a/java/inflearn/problemsolving/p07_recursive_tree_graph/P07_03_팩토리얼.java b/java/inflearn/problemsolving/p07_recursive_tree_graph/P07_03_팩토리얼.java
@@ -0,0 +1,19 @@
+package inflearn.problemsolving.p07_recursive_tree_graph;
+
+import java.util.Scanner;
+
+public class P07_03_팩토리얼 {
+
+    public static int solve(int n) {
+        if (n == 1) return 1;
+        return n * solve(n-1);
+    }
+
+    public static void main(String[] args) {
+        // 5 => 120
+        Scanner in = new Scanner(System.in);
+        int input = in.nextInt();
+
+        System.out.println(solve(input));
+    }
+}
