Assignment 1. Design Push Down Automata for the following language, Consider E= {a,b} L= {w| w is a string of (a,b)* where number of 'a' and number of 'b' is not equal} Hints: The string can contain 'a and b' in any combination (star * operation). But the number of 'a' and 'b' will be unequal in the accepted string. Some example strings: aabbababa, bbbaabaabbbb, bababababab, aaaaaaaba etc.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Design Push Down Automata for the following language, Consider E= {a,b}
L= {w | w is a string of (a,b)* where number of 'a' and number of 'b' is not equal}
Hints: The string can contain 'a andb' in any combination (star * operation). But
the number of 'a' and 'b' will be unequal in the accepted string. Some example
strings: aabbababa, bbbaabaabbbb, bababababab, aaaaaaaba etc.
Transcribed Image Text:Assignment 1. Design Push Down Automata for the following language, Consider E= {a,b} L= {w | w is a string of (a,b)* where number of 'a' and number of 'b' is not equal} Hints: The string can contain 'a andb' in any combination (star * operation). But the number of 'a' and 'b' will be unequal in the accepted string. Some example strings: aabbababa, bbbaabaabbbb, bababababab, aaaaaaaba etc.
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