It is a pushdown automata question. i got it from a textbook.

a Push down automata transition diagram to accept the languages

For E = {0,1}, design PDA to accept the following languages: (a) {x|xE{0, 1}*} (b) {x|xE {0, 1}* and x = x*} (c) {0"1" | n s m s 2n} (d) {0"1" |3n s ms 7n} 4. For E = {0,1}, design PDA to accept the following languages: (a) {x|xE{0, 1}*} (b) {x|xE {0, 1}* and x = x*} (c) {0"1" | n s m s 2n} (d) {0"1" |3n s ms 7n} 4