1. We can approach this by recursively checking if the first and last characters of the string are parentheses, and then repeating the process with the substring inside those parentheses.
2. We can approach this by iterating over the characters in the string and keeping track of the number of open parens seen so far.
For the first function, we need to check if the given string s is a nesting of zero or more pairs of parentheses.
Here's the implementation:
bool nestParen(string s) {
if (s.empty()) { // empty string is a valid nesting
return true;
} else if (s.length() == 1) { // single character string can't be a nesting
return false;
} else if (s[0] == '(' && s[s.length() - 1] == ')') { // first and last characters are parentheses
return nestParen(s.substr(1, s.length() - 2)); // recursive call with substring inside the parentheses
} else { // first and last characters are not parentheses
return false;
}
}
For the second function, we need to check if there is a closing paren for every opening paren, and if all closing parens have a matching opening paren.
Here's the implementation:
bool balancedParens(string s) {
int openParens = 0;
for (char c : s) {
if (c == '(') {
openParens++;
} else if (c == ')') {
if (openParens == 0) { // no open parens to match with
return false;
}
openParens--;
}
}
return openParens == 0; // all open parens have been matched
}
If we encounter a closing paren when there are no open parens, or if we finish iterating over the string and there are still open parens, then the string is not balanced.
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Task 5: Create the GET_CREDIT_LIMIT procedure to obtain the full name and credit limit of the customer whose ID currently is stored in I_CUST_ID. Place these values in the variables I_CUSTOMER_NAME and I_CREDIT_LIMIT, respectively. When the procedure is called it should output the contents of I_CUSTOMER_NAME and I_CREDIT_LIMIT.
The SQL statement that would create the GET_CREDIT_LIMIT procedure to obtain the full name and credit limit of the customer is:
GET_CREDIT_LIMIT
SELECT CUST_ID 125
FROM FIRST_NAME, LAST_NAME, CREDIT_LIMIT
WHERE LAST_NAME ="Smith"
What is SQL?This is an acronym that means Structured Query Language that is used in handling data in a database.
Hence, we can see that from the attached image, there is a table that contains the details of customers and their various data such as their first and last names, credit limits, address, etc, and the GET_CREDIT_LIMIT procedure is shown above.
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You have been asked to configure a client-side virtualization solution with three guest oss. Each one needs internet access. How should you configure the solution in the most cost-effective way?
The most cost-effective way to configure a client-side virtualization solution is by using one (1) physical NIC, three (3) virtual NICs, and one (1) virtual switch.
What is virtualization?Virtualization refers to the creation of an abstraction layer over computer hardware through the use of a software, in order to enable the operating system (OS), storage device, server, etc., to be used by end users.
In this scenario, the most cost-effective way to configure a client-side virtualization solution is by using one (1) physical network interface card (NIC), three (3) virtual network interface cards (NICs), and one (1) virtual switch.
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Your organization has just approved a special budget for a network security upgrade. What procedure should you conduct to make recommendations for the upgrade priorities? unit 9 quiz
The procedure should you conduct to make recommendations for the upgrade priorities is posture assessment.
What is Posture assessment?Postural assessment is known to be one that contains the observation of stable posture so as to get an alignment and visual assessment of paired anatomic traits in terms of symmetry.
Hence, the procedure should you conduct to make recommendations for the upgrade priorities is posture assessment.
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How can you ensure that your internet search is happening over a secure network connection?.
A person can you ensure that your internet search is happening over a secure network connection by the use of:
By Renaming your Routers and Networks.The use of a strong passwords.Do Turn on encryption.The use of multiple firewalls.What is secure network connection?A secure connection is known to be a kind of a connection that is known to be one that is often encrypted by the use of a single or a lot of security protocols to make sure that the security of data that is known to be passing between two or more nodes.
Therefore, based on the above scenario, A person can you ensure that your internet search is happening over a secure network connection by the use of:
By Renaming your Routers and Networks.The use of a strong passwords.Do Turn on encryption.The use of multiple firewalls.Learn more about internet search from
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A network designer wants to run a 10 gigabit backbone between two switches in buildings that are 75 m (246 feet) apart. What is the main consideration when selecting an appropriate copper cable?
The main consideration when selecting an appropriate copper cable is that:
At that given distance, one can use some kinds of shielded or screened cat 6A or one can use a cable which is said to be needed for the installation to be in line with Ethernet standard 10GBASE-T.
What are the types of copper cables?Copper cable are known to often electrical signals to transmit data between some or a given networks.
Note that there are three types of copper cable which are:
coaxial, unshielded twisted pair shielded twisted pair.Copper is said to be a kind of electrical conductor in a lot of categories of electrical wiring and so The main consideration when selecting an appropriate copper cable is that:
At that given distance, one can use some kinds of shielded or screened cat 6A or one can use a cable which is said to be needed for the installation to be in line with Ethernet standard 10GBASE-T.
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When an event takes place, the control responsible for the event creates an event?
Answer: Firing
Explanation:
Which types of attacks are thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters
The types of attacks that are known to be thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters are said to be Brute Force Attacks.
What is Brute Force Attacks?
This is known to be an attack that is said to be a very crude type of attack and it is often seen as a brute-force attack.
Note that is one that does not depend on lists of passwords, but it is one that often tries all the very possible combinations of permitted character types.
Hence, this type of attack was known to be historically seen as ineffective, and it is said to be The types of attacks that are known to be thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters are said to be Brute Force Attacks.
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Define a function GetVolume() that takes one integer parameter passed by reference as totalCups and two integer parameters as gallons and cups. If both gallons and cups are non-negative, the function computes totalCups and returns true. Otherwise, the function returns false without updating totalCups.
The computer program that takes one integer parameter is illustrated below.
What is a computer program?A computer program is a set of instructions in a programming language for a computer to execute. A computer program in its human-readable form is called source code.
The program is illustrated below:
#include<iostream>
using namespace std;
void ConvertVolume(int totalTablespoons, int &cups, int &tablespoons) {
// compute the cups and tablespoons
// as they are passed by reference,
// the change will also reflect in the main function
cups = totalTablespoons / 16;
tablespoons = totalTablespoons % 16;
}
int main() {
int usrCups;
int usrTablespoons;
int totalTablespoons;
// user input
cin>>totalTablespoons;
// call the function
ConvertVolume(totalTablespoons, usrCups, usrTablespoons);
// print the output
cout<<usrCups<<" cups and "<<usrTablespoons<<" tablespoons"<<endl;
return 0;
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Amber is a hacker who steals information when people enter their personal details on specific websites. She intercepts the public key as it is sent from the Web server to the Web browser and substitutes her own public key in its place. This enables her to intercept the communication and decrypt the symmetric encryption key using her private key.
In the case above, the type of hacking attack is Amber perpetrating is option b. A man-in-the-middle attack.
What is a person in the middle attack?A man-in-the-middle (MiTM) attack is known to be a form of a type of cyber attack where the attacker is known to often and secretly intercepts and pass messages that occurs between two parties who think they are communicating directly with one another.
Hence, In the case above, the type of hacking attack is Amber perpetrating is option b. A man-in-the-middle attack.
Se full question below
Amber is a hacker who steals information when people enter their personal details on specific websites. She intercepts the public key as it is sent from the Web server to the Web browser and substitutes her own public key in its place. This enables her to intercept the communication and decrypt the symmetric encryption key using her private key.
Which type of hacking attack is Amber perpetrating?
a. A denial-of-service attack
b. A man-in-the-middle attack
c. A drive-by attack
d. A malware attack
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Steve wants to insert the copyright information in the webpages for the images used in the website. where would you recommend him to place this information?
I would recommend to Steve that he should insert or place the copyright information for the images used in the website in between the <footer>.....</footer>.
What is a website?A website can be defined as a collective name which connotes a series of webpages that are interconnected or linked together with the same domain name, so as to provide certain information to end users.
What is a webpage?A webpage can be defined as a hypertext document within a website and it usually has a unique uniform resource locator (URL).
In this scenario, I would recommend to Steve that he should insert or place the copyright information for the images used in the website in between the <footer>.....</footer> because they would appear underneath each of the webpages.
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application of ict in education
Explanation:
An advantage is that you can be more interactive with students. Teachers can further engage their students with things like quizzes. A disadvantage is you can get information almost instantly which may leave children questioning why they go to school, causing resultant dropouts. This also may make it easier to cheat on examinations which teachers don't want.
What is the confirmation or validation of an event or object? multiple choice business intelligence data fact descriptive analytics
Fact is the confirmation or the validation of an event or object.
What do we mean by a fact?A fact is known to be a form of an indisputable observation in regards to a natural or social scenario.
The definition of the term fact is known to be anything that is regarded as true or that thing that has taken place or has been proven to be right. An example of a fact is the popular notion that the world is round.
Note that a person can see it straightforward and show it to others, hence, Fact is the confirmation or validation of an event or object.
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Weak passwords are a(n) ___________ threat
Answer: Employee
Explanation:
Which tool can your organization use to remotely wipe a lost mobile phone when byod has been implemented in the enterprise?
Remote Wipe is a tool that can your organization use to remotely wipe a lost mobile phone when byod has been implemented in the enterprise.
What Is a Remote Wipe?It is known to be a tool that can used to erase data on a device that is known to be lost or stolen so that if the device is seen in the hands of the wrong hands, the data in it cannot be compromised.
Note the term remote wipe is seen as a kind of a security feature that gives room for a network administrator or the owner of any given device to send a command that will act to remove or deletes data that is in a computing device.
Note that it is a tool that It is primarily used to remove data on a device that has been lost or stolen and thus Remote Wipe is a tool that can your organization use to remotely wipe a lost mobile phone when byod has been implemented in the enterprise.
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China sends a computer virus that shuts down telephone service in the United States. In retaliation, the United States hacks into China's power grid and causes blackouts throughout the provinces. This exemplifies how the United States __________.
In the case above, it exemplifies how the United States can be both victim and perpetrator of cyberattacks.
What are cyberattacks?A cyber attack is known to be a form of an online assault that is said to be launched by a lot of cybercriminals through the use of one or more computers against a single or a lot of computers or networks.
Note that In the case above, it exemplifies how the United States can be both victim and perpetrator of cyberattacks as it is an online assault.
See options below
a. establishes military superiority
b. can be both victim and perpetrator of cyberattacks
c. places a low priority on cyberattack protection
d. has nothing to fear from cyberattacks
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What three values must be added to the ipv4 properties of a nic in order for a computer to have basic connectivity with the network? (choose three. )
The ___ method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
Answer:
Find
Explanation:
The find method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
How can you reduce the likelihood of wps brute-force attacks?
One can reduce the likelihood of wps brute-force attacks if they Implement lockout periods for incorrect attempts.
What is a Brute Force Attack?This refers to the type of hacking that is done when a system or algorithm tries out multiple password combinations and sequences until it gets the right one.
Hence, we can see that based on the vulnerability of the WPS system to a brute force attack, it is recommended that there is the implementation of lockout periods for incorrect attempts.
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Jared tends to display his weaknesses and downplay his positive characteristics. With whom is he is likely to prefer to spend time
In the case above, Jared is likely to prefer to spend time with his friends.
What is the meaning of association?The Definition of the term association is known to be the act of being with other people.
People often associate with others due to one thing all the other. life exist only as a result of the relationship we have. it can be association base on friendship, love, family, business, and others.
Note that in the case above, because Jared wants to be with his friends, he tends to show only his weakness and as such, In the case above, Jared is likely to prefer to spend time with his friends.
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What is the new subnet mask in prefix format?
In the case above, the the new subnet mask in prefix format is seen in IPv6 and in IPv4.
What is subnet prefix mask?A lot or a single computer that is known to be linked to a subnet is said to shares a kind of an identical part of the IP address.
Note that this shared information is said to be called the routing prefix, and in IPV4 (Internet Protocol Version 4), the routing prefix is said to be called a subnet mask.
Hence, The the new subnet mask in prefix format is seen in IPv6 and in IPv4 because that is the format that it always comes in.
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What two advantages does a dataraptor turbo extract have over a standard dataraptor extract?
The two advantages of dataraptor turbo extract that it have over a standard dataraptor extract are:
It is known to have Simpler configuration.It is known to also have a better performance at runtime.What is data Raptor?A DataRaptor is known to be a kind of a mapping tool that helps a person to be able to read, change, and write Salesforce data.
Hence, The two advantages of dataraptor turbo extract that it have over a standard dataraptor extract are:
It is known to have Simpler configuration.It is known to also have a better performance at runtime.Learn more about DataRaptor from
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You have configured your Active Directory environment with multiple sites and have placed the appropriate resources in each of the sites. You are now trying to choose a protocol for the transfer of replication information between two sites. The connection between the two sites has the following characteristics:
In the above case, the protocol that meets these requirements is SMTP .
What is SMTP?SMTP or Simple Mail Transfer Protocol is known to be a kind of an application that is needed or that is often used to send, receive, and pass outgoing emails and this exist between senders and receivers.
Hence, in the above case, the protocol that meets these requirements is SMTP.
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The link is generally unavailable during certain parts of the day because of an unreliable network provider. The replication transmission must be attempted whether the link is available or not. If the link was unavailable during a scheduled replication, the information should automatically be received after the link becomes available again. Replication traffic must be able to travel over a standard Internet connection. Which of the following protocols meets these requirements? A. IP B. SMTP C. RPC D. DHCP
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What would happen to the glomerular filtration rate (gfr) if a person suffered from severe malnutrition?
Answer: Children and adults with malnutrition have been shown to have a decreased glomerular filtration rate and renal plasma flow (RPF), as well as a lowered capacity to concentrate the urine and excrete an acid load.
Explanation:
Consider the following method. public boolean checkIndexes(double[][] data, int row, int col) { int numRows
The variable declaration and initialization, that appears in a method in the same class as checkIndexes is checkIndexes(table, 4, 5).
What is declaration of a variable?Declaration of a variable is known to be a function or work that is seen in computer programming language.
This is known to be a form of a statement that is known to be often used to state or specify the variable in regards to its name and that of its data type.
Note that the Declaration is known to be one that informs the compiler about the presence of an entity in that program and where one can find it.
Hence, The variable declaration and initialization, that appears in a method in the same class as checkIndexes is checkIndexes(table, 4, 5).
See full question below
Consider the following method.
public boolean checkIndexes(double[][] data, int row, int col)
{
int numRows = data.length;
if (row < numRows)
{
int numCols = data[0].length;
return col < numCols;
}
else
{
return false;
}
}
Consider the following variable declaration and initialization, which appears in a method in the same class as checkIndexes.
double[][] table = new double[5][6];
Which of the following method calls returns a value of true ?
A checkIndexes(table, 4, 5)
B checkIndexes(table, 4, 6)
C checkIndexes(table, 5, 4)
D checkIndexes(table, 5, 6)
E checkIndexes(table, 6, 5)
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AAA DRIVER'S ED has anyone done this before??? and they know the answer?? bc its not working
The correct sequence for the driver's ED test is:
Check gaugeStart engineRelease keyCheck lightsLet engine idleCheck if gear is in parkCheck parking brakeFoot on brake pedalWhat is a Driving Test?This refers to the official test of how competent a driver is to ride on the highway and must be passed in order to get a driving license.
Hence, we can see that when taking a driver's test, you would be tested on your knowledge of starting a car, checking the gauges and parking brakes, and the correct sequence of doing it.
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Answer: Mine was not working either, it said it was wrong even though i did it correctly, here is the proper sequences:
Explanation:
What do we call a blinking indicator that shows you where your next action will happen?
Answer:
cursor
Explanation:
What is the digital foot print?
Answer:
Digital footprint (or digital shadow) refers to a person's unique set of traceable digital activities, actions, contributions and communications manifested on the Internet or digital devices.
Hope this helps.
Answer: A digital footprint is an impact you create on the Web through your online activity, which incorporates browsing, interactions with others, and publication of content. In other words, it can be considered as the data trail – intentional and unintentional - you leave behind while you surf the Web or Internet.
While working on a Windows workstation, you've enabled Remote Desktop.
Which of the following ports MUST be opened in the server's firewall to allow remote clients to access the desktop?
a) 3389
b) 389
c) 110
d) 123
The ports that MUST be opened in the server's firewall to allow remote clients to access the desktop is 3389,
What is the port of a computer?A port in computer hardware is known to be a form of a jack or socket that is said to be used when a piece of software is known to be translated or converted to be used or run on another hardware or operating system (OS).
Note that The ports that MUST be opened in the server's firewall to allow remote clients to access the desktop is 3389.
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Application software can be categorized as either general-purpose, specialized, or ________ apps.
Application software can be categorized as either general-purpose or mobile apps.
What are mobile apps?Mobile apps can be defined as specialized applications developed to be used in cellphone devices.
Mobile apps are widely used and may help with diverse types of daily tasks and human activities.
In conclusion, application software can be categorized as either general-purpose or mobile apps.
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Using above information, Write a prolog program to answer the following queries. Please note that you cannot simply answer these queries with only facts, you should answer then using facts and rules
Using the computational knowledge in python it is possible to write a code that uses the functions to make a a prolog program to answer the following queries
Writting the code in python:valid([]).
valid([Head|Tail]) :-
fd_all_different(Head),
valid(Tail).
sudoku(Puzzle, Solution) :-
Solution = Puzzle,
Puzzle = [S11, S12, S13, S14,
S21, S22, S23, S24,
S31, S32, S33, S34,
S41, S42, S43, S44],
fd_domain(Solution, 1, 4),
Row1 = [S11, S12, S13, S14],
Row2 = [S21, S22, S23, S24],
Row3 = [S31, S32, S33, S34],
Row4 = [S41, S42, S43, S44],
Col1 = [S11, S21, S31, S41],
Col2 = [S12, S22, S32, S42],
Col3 = [S13, S23, S33, S43],
Col4 = [S14, S24, S34, S44],
Square1 = [S11, S12, S21, S22],
Square2 = [S13, S14, S23, S24],
Square3 = [S31, S32, S41, S42],
Square4 = [S33, S34, S43, S44],
valid([Row1, Row2, Row3, Row4,
Col1, Col2, Col3, Col4,
Square1, Square2, Square3, Square4]).
| ?- sudoku([_, 4, 3, 2,
3, _, _, _,
4, 1, _, _,
_, _, 4, 1],
Solution).
Solution = [1,4,3,2,3,2,1,4,4,1,2,3,2,3,4,1]
yes
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