16 views

Write regular expressions for the following languages$:$

1. The set of strings over alphabet $\{a,b,c\}$ containing at least one $a$ and at-least one $b.$
2. The set of strings of $0's$ and $1's$ whose tenth symbol from the right end is $1.$
3. The set of strings of $0's$ and $1's$ with at most one pair of consecutive $1's.$

edited | 16 views