#include<stdio.h> #include <math.h> int main(){ float a,b,c,d; float x1,x2; scanf("%f %f %f",&a,&b,&c); d=b*b-4*a*c; if(d>=0) { x1=(-b-sqrt(d))/(2*a); x2=(-b+sqrt(d))/(2*a); if (x1>=x2) printf("%.2f %.2f\n",x1,x2); else printf("%.2f %.2f\n",x2,x1); } else printf("无实数解!\n"); return 0; } |
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