void main(){ void exchange(float *q1,float *q2,float *q3);float a,b,c,*p1,*p2,*p3;scanf("%f,%f,%f",&a,&b,&c);p1=&a;p2=&b;p3=&c;exchange(p1,p2,p3);printf("%f,%f,%f",a,b,c);} void exchange(float *q1,float *q2,float *q3){ void swap(float *m,flo...