train.txt

一个火车调度的程序,援引自中国中学生奥林匹克中学生信息技术,内有详细说明程序的要求

8
abcdefgh
baefhcgd
hAB
gAB
fAB
eAC
dAD
fBC
gBD
hBC
cAD
hCD
fCD
eCD
bAC
aAD
bCD
success
--------------------------------------------------------------------------------------
8
abcdefgh
gdfcaehb
hAB
gAC
fAC
eAB
dAC
cAC
bAD
aAC
error
--------------------------------------------------------------------------------------
8
abcdefgh
baefhcgd
hAB
gAB
fAB
eAC
dAD
fBC
gBD
hBC
cAD
hCD
fCD
eCD
bAC
aAD
bCD
success
--------------------------------------------------------------------------------------
5
abcde
bedca
eAB
dAB
cAB
bAC
aAD
cBD
dBD
eBD
bCD
success
--------------------------------------------------------------------------------------