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Exercise:  Strings that Start and End with the Same Symbol

Use the pda applet below to construct a PDA's that accepts strings of the form

{w ∈ {0,1}* | w starts and ends with the same symbol}

Examples of strings to accept
Examples of strings to reject
00
11
01110
10111
00110
0001001110101100
ε
10
1010
111000
00110011
1000000010

(Need help with the applet? Right click here to open help in new window.)

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