From adb07f27c52be5a7012f0bbba4ad2ecf00c8c1d4 Mon Sep 17 00:00:00 2001
From: smallkun <smallerkun@foxmail.com>
Date: Tue, 18 Mar 2025 08:37:39 +0800
Subject: [PATCH] Auto commit

---
 2207/C语言同步练习源码/4.函数-3.c | 30 ++++++++++++++++++++++++++++++
 2207/C语言同步练习答案.md         | 30 ++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 2207/C语言同步练习源码/4.函数-3.c

diff --git a/2207/C语言同步练习源码/4.函数-3.c b/2207/C语言同步练习源码/4.函数-3.c
new file mode 100644
index 0000000..3056c8f
--- /dev/null
+++ b/2207/C语言同步练习源码/4.函数-3.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+//�ݴη� 
+int power(int n){
+	int s = 1, i;
+	for(i=1;i<=n;i++){
+		s *= 2;
+	}
+	return s;
+}
+//�׳� 
+int factorial(int n){
+	int s = 1, i;
+	for(i=1;i<=n;i++){//1~n
+		s*=i;
+	}
+	return s;
+}
+
+int main(){
+	int n, i, s = 0;
+	scanf("%d", &n);
+	for(i=1;i<=n;i++){
+		s += power(i) * factorial(i);
+	}
+	printf("%d\n", s);
+
+	return 0;
+}
+
diff --git a/2207/C语言同步练习答案.md b/2207/C语言同步练习答案.md
index 2cc3d32..b70bd79 100644
--- a/2207/C语言同步练习答案.md
+++ b/2207/C语言同步练习答案.md
@@ -702,6 +702,36 @@ int main(){
 ![image-20250227231154429](https://yp.smallkun.cn/markdown/image-20250227231154429.png!compress)
 
 ```c
+#include <stdio.h>
+
+//幂次方 
+int power(int n){
+	int s = 1, i;
+	for(i=1;i<=n;i++){
+		s *= 2;
+	}
+	return s;
+}
+//阶乘 
+int factorial(int n){
+	int s = 1, i;
+	for(i=1;i<=n;i++){//1~n
+		s*=i;
+	}
+	return s;
+}
+
+int main(){
+	int n, i, s = 0;
+	scanf("%d", &n);
+	for(i=1;i<=n;i++){
+		s += power(i) * factorial(i);
+	}
+	printf("%d\n", s);
+
+	return 0;
+}
+
 ```