(2):2
(3):hm
(4):2*hl
程序運行結果:
hb=2,hm=30,hl=68
hb=5,hm=25,hl=70
hb=8,hm=20,hl=72
hb=11,hm=15,hl=74
hb=14,hm=10,hl=76
hb=17,hm=5,hl=78
hb=20,hm=0,hl=80
n=7