المتغيّرات والإدخال والإخراج

int age = 25;
float price = 19.99;
char grade = 'A';

int age = 25;
float price = 19.99;
printf("العمر: %d\n", age);
printf("السعر: %.2f\n", price);

int age;
printf("اكتب عمرك: ");
scanf("%d", &age);
printf("عمرك %d\n", age);

#define PI 3.14159
const int MAX = 100;