Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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C++
![Return the centered average of an array, which is the mean average of the values,
ignoring the largest and smallest. If there are multiple copies of the smallest or largest
values, ignore just one. If the array length is less than 3, then return 0.
You may use a loop, or the algorithms in the standard library.
arrays.cpp
1 #include <algorithm>
2 #include <numeric>
3 using namespace std;
4
double centeredAverage(const double a[], size t len)
6 {
5
7
8
9
10 }
Demo.cpp
1 #include <iostream>
2 using namespace std;
3
4
#include "arrays.h"
int main()
{
double al[] = {13.4,6.5,8.4,6.7,10.9,8.2,2.2,10.5,4.9};
print("al->", al, 9);
cout « "centeredAverage: " «
cout « endl;
6
7
8
10
« centeredAverage(al, 9) « endl;
11
12
13
double a2[] = {12.6,13.4,23.4,9.5,5.9,15.5,14.4,5.3,22.0,15.1};
print ("a2->", a2, 10);
cout « "centeredAverage: " « centeredAverage(a2, 10) « endl;
cout « endl;
14
15
16
17
double a3[] = {10.1,22.7,17.4};
print("a3->", a3, 3);
cout « "centeredAverage: " « centeredAverage(a3, 3) « endl;
cout « endl;
18
19
20
21
22
23
double a4[] = {9.3,18.5,6.7,20.4,16.5,8.6,20.4,8.5,13.3,13.8, 19.9,6.4,20.3,6.1};
print ("a4->", a4, 14);
cout « "centeredAverage: " «
cout « endl;
24
25
« centeredAverage(a4, 14) « endl;
26
27 }
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Transcribed Image Text:Return the centered average of an array, which is the mean average of the values,
ignoring the largest and smallest. If there are multiple copies of the smallest or largest
values, ignore just one. If the array length is less than 3, then return 0.
You may use a loop, or the algorithms in the standard library.
arrays.cpp
1 #include <algorithm>
2 #include <numeric>
3 using namespace std;
4
double centeredAverage(const double a[], size t len)
6 {
5
7
8
9
10 }
Demo.cpp
1 #include <iostream>
2 using namespace std;
3
4
#include "arrays.h"
int main()
{
double al[] = {13.4,6.5,8.4,6.7,10.9,8.2,2.2,10.5,4.9};
print("al->", al, 9);
cout « "centeredAverage: " «
cout « endl;
6
7
8
10
« centeredAverage(al, 9) « endl;
11
12
13
double a2[] = {12.6,13.4,23.4,9.5,5.9,15.5,14.4,5.3,22.0,15.1};
print ("a2->", a2, 10);
cout « "centeredAverage: " « centeredAverage(a2, 10) « endl;
cout « endl;
14
15
16
17
double a3[] = {10.1,22.7,17.4};
print("a3->", a3, 3);
cout « "centeredAverage: " « centeredAverage(a3, 3) « endl;
cout « endl;
18
19
20
21
22
23
double a4[] = {9.3,18.5,6.7,20.4,16.5,8.6,20.4,8.5,13.3,13.8, 19.9,6.4,20.3,6.1};
print ("a4->", a4, 14);
cout « "centeredAverage: " «
cout « endl;
24
25
« centeredAverage(a4, 14) « endl;
26
27 }
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