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3. Context-free grammars and pushdown automata For each of the following languages, give a grammar and a PDA. State if your grammar is ambiguous (a)
3. Context-free grammars and pushdown automata For each of the following languages, give a grammar and a PDA. State if your grammar is ambiguous (a) {ba,ab, c} (b) {w {a,b}*lu, is an odd-length palindrome starting with a} (c) fw E 0,1,21*| the number of O's is exactly 3 times the number of 1's
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