int main() {
float myFloat = 19.99;
printf("%f \n", myFloat); // Floating point
printf("%e \n", myFloat); // Scientific
printf("%g \n", myFloat); // Optimal
printf("%.2f \n", myFloat); // 2 decimal digits
printf("%8.2f \n", myFloat); // 3 leading spaces - 8 characters wide and 2 decimal digits
printf("%08.2f \n", myFloat); // zero-padded 8 characters wide and 2 decimal digits
return 0;
}