Initial commit: C language learning code

翁凯C语言/2/最大公约数.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+
+int num_small(int a,int b)
+{
+	int n = a;
+	if (a>b)
+	{
+		n = b;
+	}
+	return n;
+}
+
+int main()
+{
+	int gcd=0;
+	int a;
+	int b;
+	int n;
+    printf("请输入两个整数：");
+    scanf("%d %d", &a, &b);
+
+	if (a<0 || b<0)
+	{
+		printf("输入错误，请重新输入！\n");
+		return -1;
+	}
+	else
+	{
+		n = num_small(a,b);
+
+		for (gcd=n;gcd>=1;gcd--)
+		{
+			if (a%gcd==0 && b%gcd==0)
+			{
+				printf("最大公约数是：%d\n", gcd);
+				break;
+			}
+			
+		}
+	}
+	return 0;
+}