1 #include <stdio.h> 2 3 int main()4 main() { 5 double d = 123.43; 6 float f = 456.7f; 7 long double ld = 89.1L; 8 9 f = -f; 10 d = -d; 11 ld = -ld; 12 printf("%f\n", f); 13 printf("%f\n", d); 14 printf("%Lf\n", ld); 15 return 0; 16 } 17 18