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zubka84 [21]
3 years ago
13

What is concatenated key index​

Computers and Technology
1 answer:
kakasveta [241]3 years ago
8 0

Answer:

A concatenated index, also known as multi-column, composite, or combined index, is one index across multiple columns. In the case of queries with multiple equality conditions, even though multiple single-column indexes can result in a very good performance, a single concatenated index solution is preferable.

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Given coins of denominations (value) 1 = v1 < v2< … < vn, we wish to make change for an amount A using as few coins as
astraxan [27]

Answer:

Answer given below

Explanation:

a) 10 coins ( 25*8 + 1*2)

b) 14 coins (27*10 + 12*1 + 7*1 + 3*1 + 1*1)

<u></u>

<u>Source Code in C++: </u>

#include <iostream>

using namespace std;

//main function

int main()

{

int n,n1;

cout << "Enter the amount : "; //taking amount as input

cin >> n;

if(n<=0)

{

cout << "Fatal Error : Input Failure." << endl;

return 1;

}

cout << "Enter the number of denominations : "; //taking number of denominations as input

cin >> n1;

if(n1<=0)

{

cout << "Fatal Error : Input Failure." << endl;

return 1;

}

int a[n1],c[n1],sum=0; //array to keep count of each amount, and sum to store total coins

cout << "Enter the denominations in descending order : ";

for(int i=0;i<n1;i++)

{

cin >> a[i];

}

for(int i=0;i<n1;i++)

{

c[i]=n/a[i];

sum=sum+c[i];

n=n%a[i];

}

for(int i=0;i<5;i++)

{

cout << a[i] << " : " << c[i] << endl;

}

return 0;

}

3 0
3 years ago
A technically qualified individual who may configure firewalls and IDPSs, implement security software, diagnose and troubleshoot
sineoko [7]

Answer:

Security technician

Explanation:

Security technicians are responsible for fixing, planning, and implementing the IT and computer security system of organisations by making sure the safety and security of the data and information of the clients as well as the employees that make daily use of the systems

Security technicians administer security access to the clients and employees of the organization and are responsible for being up to date with the latest IT security technology developments.

7 0
3 years ago
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