换一个
by SeKong @ 2017-06-24 15:23:30
@[lieee](/space/show?uid=6262) 应该是替换全部，我就是替换全部然后才A，不如只替换一个会WA
by 1124828077ccj @ 2017-06-24 21:30:31
到底换几个啊
by Refun @ 2017-07-03 11:02:08
....
by cn_lemon @ 2017-07-17 20:45:55
@[lieee](/space/show?uid=6262) ,就你那组样例而言，要经三次变换才可以，因为变换规则为a -> b 原字串为aaa，变一次得到baa或者aba或者aab，两次bba或者bab或者abb，三次后得到bbb
by Forever丶CIL @ 2017-08-03 18:28:12