MINDTAP COMPUTING FOR ANDREWS' A+ GUIDE
9th Edition
ISBN: 9781305944558
Author: ANDREWS
Publisher: Cengage Learning
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Chapter 19, Problem 2RTB
Explanation of Solution
Given: Laser printer.
To find:
The reason that the toner is pulled to the drum while using a laser printer.
The reason that the toner isn’t attracted to the drum while using a laser printer...
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typedef struct { long tipo; struct { char nome[50]; char email[40]; } dados;} MsgStruct;
int main() { int msg_id, status; msg_id = msgget(1000, 0600 | IPC_CREAT); exit_on_error(msg_id, "Creation/Connection"); MsgStruct msg; msg.tipo = 5; strcpy(msg.dados.nome, "Pedro Silva"); strcpy(msg.dados.email, "pedro@sapo.pt"); status = msgsnd(msg_id, &msg, sizeof(msg.dados), 0); exit_on_error(status, "Send"); printf("Message sent!\n");}
9. Let L₁=L(ab*aa), L₂=L(a*bba*). Find a regular expression for (L₁ UL2)*L2.
10. Show that the language
is not regular.
L= {a":n≥1}
11. Show a derivation tree for the string aabbbb with the grammar
S→ABλ,
A→aB,
B→Sb.
Give a verbal description of the language generated by this grammar.
Chapter 19 Solutions
MINDTAP COMPUTING FOR ANDREWS' A+ GUIDE
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