#include<stdio.h>#include<math.h>int main() { double a,b,c,x1,x2; scanf("%lf%lf%lf",&a,&b,&c); x1=(-b+sqrt(b*b-4*a*c))/2a; x2=(-b-sqrt(b*b-4*a*c))/2a; if(b*b-4*a*c<0) { printf("no"); } else { printf("x1=%lf,x2=%lf",x1,x2); } return 0; }大佬们,我需要帮助