这是我的实现,效果很好。
您应该打印每条可能消息的优点,并查看程序输出它的原因。
letterGoodness = dict(zip(string.ascii_uppercase,
[.0817,.0149,.0278,.0425,.1270,.0223,.0202,
.0609,.0697,.0015,.0077,.0402,.0241,.0675,
.0751,.0193,.0009,.0599,.0633,.0906,.0276,
.0098,.0236,.0015,.0197,.0007]))
trans_tables = [ str.maketrans(string.ascii_uppercase,
string.ascii_uppercase[i:]+string.ascii_uppercase[:i])
for i in range(26)]
def goodness(msg):
return sum(letterGoodness.get(char, 0) for char in msg)
def all_shifts(msg):
msg = msg.upper()
for trans_table in trans_tables:
txt = msg.translate(trans_table)
yield goodness(txt), txt
print(max(all_shifts(input())))