A.k B.2k*L C.(2k-1)*L D.(2k+1)*L
A.n B.2n C.m D.2m
A.單鏈表; B.雙向鏈表; C.單循環(huán)鏈表; D.帶頭結(jié)點(diǎn)的雙循環(huán)鏈表;