delete pics to save space

history_source/信息学奥赛一本通/1.3.9.cpp

@@ -0,0 +1,21 @@
+#include<cstdio>
+using namespace std;
+int main()
+{
+	int a,b;
+	char f;
+	scanf("%d%c%d",&a,&f,&b);
+	switch(f)
+	{
+		case '+':printf("%d\n",a+b);break;
+		case '-':printf("%d\n",a-b);break;
+		case '*':printf("%d\n",a*b);break;
+		case '/':
+			if(b==0) printf("Divided by zero!\n");
+			else printf("%d\n",a/b);
+			break;
+		default:printf("Invalid operator!\n");j
+	}
+	return 0;
+}
+