Please help edit the following program so that the user can input their own arra

Question

Please help edit the following program so that the user can input their own array of numbers that are then searched for particular number indexes.

#include "stdafx.h"

#include<iostream>

#include<conio.h>

#include<cmath>

using namespace std;

void main()

{

int RandomData[] = { 9,5,23,44,21,68,26,33,26,72 };

int infant = 0, young = 0, middle = 0, old = 0, veryold = 0;

int n, freq, count = 0, high = 0;

double stdDev, mean, sum = 0;

for (int i = 0;i<(sizeof(RandomData) / sizeof(RandomData[0]));i++)

{

if (RandomData[i]>0 && RandomData[i] <= 18)

infant++;

else if (RandomData[i]>18 && RandomData[i] <= 29)

young++;

else if (RandomData[i]>29 && RandomData[i] <= 50)

middle++;

else if (RandomData[i]>50 && RandomData[i] <= 69)

old++;

else if (RandomData[i]>69)

veryold++;

}

double first = 0, second = 0;

for (int i = 0;i<(sizeof(RandomData) / sizeof(RandomData[0]));i++)

{

n = RandomData[i];

count = 0;

for (int j = 0;j<(sizeof(RandomData) / sizeof(RandomData[0]));j++)

{

if (n == RandomData[j])

count++;

}

if (high<count)

{

freq = RandomData[i];

high = count;

}

first += (pow((RandomData[i]), 2) / (sizeof(RandomData) / sizeof(RandomData[0])));

second += RandomData[i] / (sizeof(RandomData) / sizeof(RandomData[0]));

sum += RandomData[i];

}

mean = sum / (sizeof(RandomData) / sizeof(RandomData[0]));

stdDev = sqrt(first - pow((second), 2));

cout << "Number in age range infant: " << infant << endl;

cout << "Number in age range young: " << young << endl;

cout << "Number in age range middle: " << middle << endl;

cout << "Number in age range old: " << old << endl;

cout << "Number in age range older: " << veryold << endl << endl;

cout << "Mean: " << mean << endl;

cout << "Mode: " << freq << endl;

cout << "Standard Deviation: " << stdDev;

getch();

}

Explanation / Answer

Hi, I have added code to take user input.

Please let me know in case of any issue.

#include "stdafx.h"

#include<iostream>

#include<conio.h>

#include<cmath>

#include <cstdlib>

using namespace std;

void main()

{

int n, num;

cout<<"How many numbers you want to enter: ";

cin>>n;

int *RandomData = new int[n]; // creating array

cout<<"Enter "<<n<<" numbers: "<<endl;

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

cin>>RandomData[i];

int infant = 0, young = 0, middle = 0, old = 0, veryold = 0;

int n, freq, count = 0, high = 0;

double stdDev, mean, sum = 0;

for (int i = 0;i<(sizeof(RandomData) / sizeof(RandomData[0]));i++)

{

if (RandomData[i]>0 && RandomData[i] <= 18)

infant++;

else if (RandomData[i]>18 && RandomData[i] <= 29)

young++;

else if (RandomData[i]>29 && RandomData[i] <= 50)

middle++;

else if (RandomData[i]>50 && RandomData[i] <= 69)

old++;

else if (RandomData[i]>69)

veryold++;

}

double first = 0, second = 0;

for (int i = 0;i<(sizeof(RandomData) / sizeof(RandomData[0]));i++)

{

n = RandomData[i];

count = 0;

for (int j = 0;j<(sizeof(RandomData) / sizeof(RandomData[0]));j++)

{

if (n == RandomData[j])

count++;

}

if (high<count)

{

freq = RandomData[i];

high = count;

}

first += (pow((RandomData[i]), 2) / (sizeof(RandomData) / sizeof(RandomData[0])));

second += RandomData[i] / (sizeof(RandomData) / sizeof(RandomData[0]));

sum += RandomData[i];

}

mean = sum / (sizeof(RandomData) / sizeof(RandomData[0]));

stdDev = sqrt(first - pow((second), 2));

cout << "Number in age range infant: " << infant << endl;

cout << "Number in age range young: " << young << endl;

cout << "Number in age range middle: " << middle << endl;

cout << "Number in age range old: " << old << endl;

cout << "Number in age range older: " << veryold << endl << endl;

cout << "Mean: " << mean << endl;

cout << "Mode: " << freq << endl;

cout << "Standard Deviation: " << stdDev;

getch();

}

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