Morning,created a Child and Parent Process to calculate grade averages etc. how can I combine them into one Concise Program?

[Jmac21]

I keep getting the error message " main.cpp:330:1: error: expected unqualified-id before '{' token
{
^ But I feel likes there more errors than just that

#include <iostream>

#include <iomanip>

#include <cmath>

using namespace std;

// function declarations

double getAverage(int* grades, int size);

double getMedian(int* grades, int size);

double getSd(int* grades, int size);

void sortGrades(int* grades, int size);

int main()

{

// Declaring variables

int size, val;

// setting the precision to two decimal places

std::cout << std::setprecision(2) << std::fixed;

// Getting the input entered by the user

cout << "How many Number of Grades For Child Process?? :";

cin >> size;

// Creating array dynamically

int* grades = new int[size];

/* Getting the inputs entered by the user

* and populate those values into array

*/

for (int i = 0; i < size;)

{

while (true)

{

cout << "Enter the grade for each #" << i + 1 << ":";

cin >> val;

if (val < 0 || val>100)

{

cout << "** Invalid.Must be between 0-100. **" << endl;

continue;

}

else

{

grades[i] = val;

i++;

break;

}

}

}

// calling the functions

double avg = getAverage(grades, size);

double median = getMedian(grades, size);

double sd = getSd(grades, size);

sortGrades(grades,size);

  

//displaying the average , median ,Standard Deviation
cout<<"Child process has completed the average computation"<<endl;
cout <<"Child process can now display the Average! :"<<avg<<endl;

cout<<"Child process has completed the median computation"<<endl;
cout <<"Child process can now display the Median!:" << median << endl;

cout<<"Child process has completed the Standard-deviation computation"<<endl;
cout << "Child process can now display the Standard Deviation :" << sd << endl;

  

//Displaying the array elements after sorting

cout<<"Child process will now display the sorted Grades After Sorting the Grades :"<<endl;

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

{

cout<<grades[i]<<" ";

}

cout<<endl;

//Displaying the graph
cout<<"Child process will now Graph"<<endl;
cout<<"\nGraph is displayed below:"<<endl;

for(int n=0;n<100;n+=20)

{

cout<<n<<"-"<<n+20<<"\t";

for(int m=0;m<size;m++)

{

if(grades[m]>=n && grades[m]<n+20)

cout<<"*";

}

cout<<endl;

}
cout<<"Child process has completed graphing"<<endl;
cout<<"Child process has completed all task"<<endl; 



return 0;

}

// This function calculates the average of grades

double getAverage(int* grades, int size)

{

double sum = 0.0;

// calculating the sum of res[] array elements

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

{

// calculating the sum

sum += grades[i];

}

// calculating the average

double avg = sum / size;

return avg;

}

// This function calculates the median of grades

double getMedian(int* grades, int size)

{

// This Logic will Sort the Array of elements in Ascending order

int temp;

int middle;

double median;

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

{

for (int j = i + 1; j < size; j++)

{

if (grades[i] > grades[j])

{

temp = grades[i];

grades[i] = grades[j];

grades[j] = temp;

}

}

}

if (size % 2 == 0)

{

middle = size / 2;

median = (float)(grades[middle - 1] + grades[middle]) / 2.0;

}

else

{

middle = (size + 1) / 2;

median = grades[middle];

}

return median;

}

// This function calculates the standard deviation of grades

double getSd(int* grades, int size)

{

int sum_of_squares = 0, standard_deviation;

double variance;

double avg = getAverage(grades, size);

/* This loop Calculating the sum of

* square of eeach element in the array

*/

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

{

/* Calculating the sum of square of

* each element in the array

*/

sum_of_squares += pow((grades[i] - avg), 2);

}

// calculating the variance of an array

variance = ((double)sum_of_squares / (size));

// calculating the standard deviation of an array

standard_deviation = sqrt(variance);

return standard_deviation;

}

void sortGrades(int* grades, int size)

{

//This Logic will Sort the Array of elements in Ascending order

int temp;

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

{

for (int j = i + 1; j < size; j++)

{

if (grades[i] > grades[j])

{

temp = grades[i];

grades[i] = grades[j];

grades[j] = temp;

}

}

}

}

{
int size = 0, min = 0, max = 0, countMin = 0, countMax = 0;
;
cout << "Enter number of Grades : ";
cin >> size;
int grade[size];
// loop through size time and read user input
for (int i = 0; i < size; i++)
{
cout << "Enter #" << (i + 1) << " grade : ";
cin >> grade[i];
if (i == 0) // Initally the user entered inputs are max and min
{
min = grade[i];
max = grade[i];
}
// get the max grade
if (max < grade[i])
max = grade[i];
// get the min grade
if (min > grade[i])
min = grade[i];
}
// loop through each grade in array and no of times the max and min value repeated
for (int i = 0; i < size; i++)
{
if (max == grade[i])
countMax++;
if (min == grade[i])
countMin++;
}
cout<<"Parent process has determinded the largest grade"<<endl;
cout <<"Parent Process can now display Max grade which is: " << max << endl;

cout<<"Parent process has determined the smallest grade"<<endl;
cout << "Parent Process can now display Min grade which is : " << min << endl;

cout << "Parent Process can now display count of time Max grade " << max << " repeated is : " << countMax << endl;
cout << "Parent Process can now display count of time Min grade " << min << " repeated is : " << countMin << endl;

int countGraph[max + 1] = {0};
// create a array and display the graph by count
for (int i = 0; i < size; i++)
{
countGraph[grade[i]] = countGraph[grade[i]] + 1;
}
cout << "\nGraph report : " << endl;
// loop through min to max value of array
for (int i = min; i <= max; i++)
{
// if count value is greater then 0 display graph
if (countGraph[i] > 0)
{
cout << i << " ";
for (int j = 0; j < countGraph[i]; j++)
{
cout << "*";
}
cout << endl;
}
}
}

[doug4]

At line 323 in what you pasted, you are at file scope--not within a function. And you have an opening brace '{'.

The What is this brace? Is it a function? It is out of place right now. That's what the error is telling you.

[keskiverto]

Do you use indentation to format your code, or is it as "flat" as what you have posted?

Does the editor that you use offer indenting functions?

It seems, by your formatting, that lines 1-322 are from different source than the lines 323-384.

created a Child and Parent Process

What does that mean, exactly?