Answered: USING C++ Program Specifications:…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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USING C++

Program Specifications: Write a program to calculate the minimum, maximum, mean, median, mode, and whether a vector is a palindrome.

Step 0. Review the starter code in main(). A vector is filled with integers from standard input. The first value indicates how many numbers are to follow and be placed in the vector.

Step 1. Use a loop to process each vector element and output the minimum and maximum values. Submit for grading to confirm one test passes.

Ex: If the input is:

6 4 1 5 4 99 17

the output is:

Minimum: 1

Maximum: 99

Step 2. Use a loop to sum all vector elements and calculate the mean (or average). Output the mean with one decimal place using cout << fixed << setprecision(1); once before all other cout statements. Submit for grading to confirm two tests pass.

Ex: If the input is:

6 4 1 5 4 99 17

the output is:

Minimum: 1

Maximum: 99

Mean: 21.7

Step 3. Use a loop to determine if the vector is a palindrome, meaning values are the same from front to back and back to front. Output "true" or "false". Submit for grading to confirm three tests pass.

Ex: If the input is:

9 1 2 3 4 5 4 3 2 1

the output is:

Minimum: 1

Maximum: 5

Mean: 2.8

Palindrome: true

Step 4. main() includes a call to sort(), which sorts the vector elements into ascending order. Do not sort the vector before step 4. After sorting, identify the median. The median is located in the middle of the vector if the vector's size is odd. Otherwise, the median is the average of the middle two values. Output the median with one decimal place. Submit for grading to confirm four tests pass.

Ex: If the input is:

6 2 2 5 6 7 7

the output is:

Minimum: 2

Maximum: 7

Mean: 4.8

Palindrome: false

Median: 5.5

Step 5. Identify the mode after the vector is sorted in ascending order. The mode is the value that appears most frequently. Assume only one mode exists. Hint: Use a loop to process each vector element, looking for the longest sequence of identical values. Submit for grading to confirm all tests pass.

Ex: If the input is:

9 1 2 2 2 3 3 4 5 6

the output is:

Minimum: 1

Maximum: 6

Mean: 3.1

Palindrome: false

Median: 3.0

Mode: 2

main.cpp
1 #include <iostream>
2 #include <iomanip>
3 #include <vector>
#include <algorithm>
using namespace std;
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7 int main()
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int count;
// Step 0: Input values
cin >> count;
vector<int> nums (count);
for (int i = 0; i < count; ++i) {
cin >> nums.at(i);
}
// for setprecision()
// for sort()
// Step 1: Find minimum and maximum values
/* Type your code here. */
// Step 2: Calculate mean
T..=-
--- ---

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// Step 2: Calculate mean
/* Type your code here. */
// Step 3: Check if palindrome
/* Type your code here. */
// Sort vector elements in ascending order
sort (nums.begin(), nums.end());
// Step 4: Find and output median
/* Type your code here. */
// Step 5: Find and output mode
/* Type your code here. */
return 0;

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