添加platinum.c

chapter3/platinum.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main(void){
+    float weight;
+	float value;
+	printf("Are you worth your weight in platinum?\n");
+	printf("Let's check is out.\n");
+	printf("please enter your weight in pounds:");
+	scanf("%f", &weight);
+	value = 1700.0 * weight * 14.5833;
+	printf("Your weight in platinum is worth $%.2f.\n", value);
+	printf("You are easily worth that! If platinum prices drop,\n");
+	printf("eat more to maintain your value.\n");
+
+	return 0;
+}