_ K c0(){R kC(0);}_ K c1(C x){K r=kC(1);R*r=x,r;}_ K c2(C x…

Twetch ·

_ K c0(){R kC(0);}_ K c1(C x){K r=kC(1);R*r=x,r;}_ K c2(C x,C y){K r=kC(2);R*r=x,r[1]=y,r;}_ K c3(C x,C y,C z){K r=kC(3);R*r=x,r[1]=y,r[2]=z,r;}_ K jc(K x,C c){R j2(x,kc(c));}