->nextr->next nullvoid polyadd(struct node *poly struct node *poly struct node *polywhile(poly ->next &poly ->nextif(poly ->pow poly ->powpoly->pow poly ->powpoly->coeff poly ->coeffpoly poly ->nextelse if(poly ->pow powpoly->pow poly ->powpoly->coeff poly ->coeffpoly poly ->nextelse poly->pow poly ->powpoly->coeff poly ->coeff+poly ->coeff