* Method: Use bitmask to represent the state of vowels. If the number of vowels is even, the state is 0. Then find the maximum length that start and end at same state.
Subway’s Sub Club was one of the original quick-service loyalty programs, starting as a physical punch card before being discontinued in 2005. Now, just two months after Subway revived the Sub Club as ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results