写着玩的，以证明我这两天没颓废……= =

大约是本blog最低水平的一篇？？？

#include
      
       #include
       
        #include
        
         #define eps 1e-9#define ld long doubleusing namespace std;int a,b,c,d,e;struct com{    ld r,i;    com(ld _r=0,ld _i=0):r(_r),i(_i){};    void pr(){printf("%Lf %Lf\n",r,i);}}s[4],w;com operator + (com a,com b){
    return com(a.r+b.r,a.i+b.i);}com operator - (com a,com b){
    return com(a.r-b.r,a.i-b.i);}com operator * (com a,com b){
    return com(a.r*b.r-a.i*b.i,a.r*b.i+a.i*b.r);}com operator / (com a,com b){ld c=b.r*b.r+b.i*b.i;return com((a.r*b.r+a.i*b.i)/c,(a.i*b.r-a.r*b.i)/c);}bool operator < (com a,com b){
    return a.r
         
          
           0) return com(sqrt(a.r),0);else return com(0,sqrt(-a.r));    com b;    b.i=sqrt((sqrt(a.r*a.r+a.i*a.i)-a.r)/2);    b.r=a.i/2/b.i;    return b;}struct jie{com x1,x2;jie(com _x1=0,com _x2=0):x1(_x1),x2(_x2){};};inline jie work(com a,com b,com c){    com det=sqrt(b*b-4*a*c);    return jie((det-b)/com(2,0)/a,(0-det-b)/com(2,0)/a);}int main(){}