View Code of Problem 42

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()//判断是否为闰年
{ int a,b,c;
 double d;
  scanf("%d%d%d",&a,&b,&c);
  d=sqrt(b*b-4*a*c);
  printf("%.2lf %.2lf",(-b+d)/(2*a),(-b-d)/(2*a));

return 0;

}

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