#include <stdio.h> #include <math.h> int main() { double a,b,c...答:有些精确度问题吧?!include <stdio.h> include <math.h> int main(){ double a,b,c,p,q,disc,x1,x2;scanf("%lf %lf %lf",&a,&b,&c); // double类型的字节长度为8,float为4.disc=b*b-4*a*c;if(disc<0)printf("NO USEFULL ANSWER\n");else { p=-b/(2*a);q=sqrt...
# include <stdio.h> # include <math.h> int main () {double a,b...答:有些精确度问题吧?!include <stdio.h> include <math.h> int main(){ double a,b,c,p,q,disc,x1,x2;scanf("%lf %lf %lf",&a,&b,&c); // double类型的字节长度为8,float为4.disc=b*b-4*a*c;if(disc<0)printf("NO USEFULL ANSWER\n");else { p=-b/(2*a);q=sqrt...