密文还原明文.A、B...Y、Z对应1、2...25、26
1个回答

DMN

D = 4 小于8和17,x/3 =4,:x = 12 -> L

M = 13 大于8,小于17,*3 大于26,(x+1)/3 + 8 = 13 :x = 14 ->N

N = 14,象M一样,x = 17->Q

答案是LNQ