Question: Regular expression of All the words over { 0 , 1 } that doesn t end with 0 1 1 2 . All the

Regular expression of"
All the words over {0,1} that doesnt end with 01
12. All the strings in L1 have the same number of as and bs.
13. All strings of length <3.
14. All the words that doesnt contains substring 011
15. All words with b as a third letter.
16.{w {0,1}* : 3rd last element must be 1}.
17. All strings in which any b's that occur are found in clumps of an odd number at a time, such as
abaabbbab.
18. All strings that have an even number of a's and an odd number of b's.
19. All strings that have an odd number of a's and an odd number of b's.
20. All words that begin or end with triple letter.

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