Merge branch 'master' of github.com:jackbenny/learning_c

vagen_till_c/ch2/exercise5a.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+
+/* Write a program that gives a customer 10% off the total price when he shops
+ * for at least 1000 SEK. Assume for simplicity that he only shops one kind of
+ * product.
+ */
+
+int main()
+{
+    float discount = 10;
+    int limit = 1000;
+    int items;
+    float subtotal, total, price;
+
+    printf("Number of items: "); scanf("%d", &items);
+    printf("Price per unit: "); scanf("%f", &price);
+    
+    subtotal = price * items;
+
+    if (subtotal >= limit)
+    {
+        total = subtotal*((100-discount)/100);
+    }
+    else
+    {
+        total = subtotal;
+    }
+
+    printf("Total price: %.2f\n", total);
+    return 0;
+}

vagen_till_c/ch2/exercise5b.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#define DISCOUNT 10.0
+#define LIMIT 1000
+
+/* Write a program that gives a customer 10% off the total price when he shops
+ * for at least 1000 SEK. Assume for simplicity that he only shops one kind of
+ * product.
+ */
+
+int main()
+{
+    int items;
+    float subtotal, total, price;
+
+    printf("Number of items: "); scanf("%d", &items);
+    printf("Price per unit: "); scanf("%f", &price);
+    
+    subtotal = price * items;
+
+    if (subtotal >= LIMIT)
+    {
+        total = subtotal*((100-DISCOUNT)/100);
+    }
+    else
+    {
+        total = subtotal;
+    }
+
+    printf("Total price: %.2f\n", total);
+    return 0;
+}