Code: Select all
aab
abb
abb
aab
I got AC. Thanks, very thanks to Rio for help me.
Moderator: Board moderators
Code: Select all
aab
abb
abb
aab
Code: Select all
Code: Select all
40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Code: Select all
1
5
11
33
87
241
655
1793
4895
13377
36543
99841
272767
745217
2035967
5562369
15196671
41518081
113429503
309895169
846649343
2313089025
6319476735
17265131521
47169216511
128868696065
352075825151
961889042433
2627929735167
7179637555201
19615134580735
53589544271873
146409357705215
399997803954177
1092814323318783
2985624254545921
8156877155729407
22285002820550657
60883759952560127
166337525546221569