fatal error LNK1169:one or more multiply defined symbols found#include#includeint main (){\x09double a,b,c,m,n,k,x1,x2;\x09printf("qingshuru");\x09scanf("%d,%d,%d",&a,&b,&c);\x09if (a!=0)\x09{\x09\x09k=b*b-4*a*c;\x09\x09m=-b/(2*a);\x09\x09n=sqrt(k)/(