EBK STARTING OUT WITH C++
8th Edition
ISBN: 8220100794438
Author: GADDIS
Publisher: PEARSON
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Expert Solution & Answer
Chapter 18, Problem 1RQE
Explanation of Solution
LIFO:
LIFO stands for “Last In First Out”.
- The item which is inserted at last, can be retrieved first.
- The example for LIFO implementation is “stack” which is a type of container.
- The elements can be inserted and retrieved at any one end of the stack. A stack can perform two operations. They are:
- Push – Inserting an element inside a stack.
- When the first element is pushed into the stack, the element will be at the “top” the stack. When the second element is added, the first element is pushed down and the second element will be at the top position, like this it goes on until the element which pushed at last will be at the top of the stack.
- Pop – Deleting an element from the stack.
- The element which is inserted at last will be deleted first.
- Push – Inserting an element inside a stack.
Example: Cookies in a container.
The baker arranges the cookies one by one in a container in which the lastly inserted cookie is taken out first from the container.
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Students have asked these similar questions
1234
3. Which line prevents compiler optimization? Circle one: 1234
Suggested solution:
Store strlen(str) in a variable before the if statement.
⚫ Remove the if statement.
Replace index 0 && index < strlen(str)) {
5 }
}
=
str [index] = val;
Character Hex value | Character Hex value Character Hex value
'A'
0x41
'J'
Ox4a
'S'
0x53
'B'
0x42
'K'
0x4b
"T"
0x54
0x43
'L'
Ox4c
'U'
0x55
0x44
'M'
0x4d
'V'
0x56
0x45
'N'
Ox4e
'W'
0x57
0x46
'0'
Ox4f
'X'
0x58
0x47
'P'
0x50
'Y'
0x59
0x48
'Q'
0x51
'Z'
Ox5a
'T'
0x49
'R'
0x52
'\0'
0x00
Now consider what happens on a Linux/x86 machine when callfoo calls foo with
the input string "ZYXWVUTSRQPONMLKJIHGFEDCBA".
A. On the left draw the state of the stack just before the execution of the instruction
at address Ox40053a; make sure to show the frames for callfoo and foo and
the exact return address, in Hex at the bottom of the callfoo frame.
Then, on the right, draw the state of the stack just after the instruction got
executed; make sure to show where the string "ZYXWVUTSRQPONMLKJIHGFEDCBA"
is placed and what part, if any, of the above return address has been overwritten.
B. Immediately after the ret instruction at address 0x400543 executes, what is
the value of the program counter register %rip?…
1 typedef struct node* {
2
struct node* next;
3
char* key;
4
char* val;
5} node_t;
6
7 char* find_node (node_t* node, char* key_to_find) {
while(strcmp (node->key, key_to_find ) != 0 ) {
node = node->next;
8
9
10
}
11
return node->val;
12 }
Chapter 18 Solutions
EBK STARTING OUT WITH C++
Ch. 18.3 - Describe what LIFO means.Ch. 18.3 - What is the difference between static and dynamic...Ch. 18.3 - What are the two primary stack operations?...Ch. 18.3 - What STL types does the STL stack container adapt?Ch. 18 - Prob. 1RQECh. 18 - Prob. 2RQECh. 18 - What is the difference between a static stack and...Ch. 18 - Prob. 4RQECh. 18 - Prob. 5RQECh. 18 - The STL stack is considered a container adapter....
Ch. 18 - What types may the STL stack be based on? By...Ch. 18 - Prob. 8RQECh. 18 - Prob. 9RQECh. 18 - Prob. 10RQECh. 18 - Prob. 11RQECh. 18 - Prob. 12RQECh. 18 - Prob. 13RQECh. 18 - Prob. 14RQECh. 18 - Prob. 15RQECh. 18 - Prob. 16RQECh. 18 - The STL stack container is an adapter for the...Ch. 18 - Prob. 18RQECh. 18 - Prob. 19RQECh. 18 - Prob. 20RQECh. 18 - Prob. 21RQECh. 18 - Prob. 22RQECh. 18 - Prob. 23RQECh. 18 - Prob. 24RQECh. 18 - Prob. 25RQECh. 18 - Prob. 26RQECh. 18 - Write two different code segments that may be used...Ch. 18 - Prob. 28RQECh. 18 - Prob. 29RQECh. 18 - Prob. 30RQECh. 18 - Prob. 31RQECh. 18 - Prob. 32RQECh. 18 - Prob. 1PCCh. 18 - Prob. 2PCCh. 18 - Prob. 3PCCh. 18 - Prob. 4PCCh. 18 - Prob. 5PCCh. 18 - Dynamic String Stack Design a class that stores...Ch. 18 - Prob. 7PCCh. 18 - Prob. 8PCCh. 18 - Prob. 9PCCh. 18 - Prob. 10PCCh. 18 - Prob. 11PCCh. 18 - Inventory Bin Stack Design an inventory class that...Ch. 18 - Prob. 13PCCh. 18 - Prob. 14PCCh. 18 - Prob. 15PC
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