I think I have most of this fairly close. I am trying to pull out the average, which I am getting, as one of the three things I am trying to do. The median and getting the printed list are not working out as well as I had hoped and I am not sure what to do to fix it. I think basically I have an issue with trying to use the counter to return the info but, am not sure exactly how to change it. I am sure it is simple but, I need some help.
#include<iostream>
#include<iomanip>
#include<cmath>
usingnamespace std;
//*****************************************Constants*********************************************;
constint size = 100;
//**************************************Function Prototypes**************************************;
int mean(int Grades[], int counter);
int median(int Grades[], int counter);
//******************************************Program Main*****************************************;
int main()
{
int Grades[100];
int counter = 0;
char input;
// Getting the number of grades and grades to be entred *;
do{
cout << "Please enter the grade.\n";
cin >> Grades[counter];
if (Grades[counter] <0 || Grades[counter] >100){
cout << "Please make sure the value entered is not less than 0 or greater than 100.\n";
cin >> Grades[counter];
}
cout << "Do you wish to enter another grade? Y or N?\n";
cin >> input;
counter++;
}while (counter < 100 && toupper(input) == 'Y');
if (counter == 100){
cout << "You have reached the maximum number of grades you can input.\n";
}
cout << "The average of the grades you have entered is " << mean(Grades, counter) << "." << endl;
cout << "The median grade of the grades you entered are " << median(Grades, counter) << "." << endl;
for (int i = 0; i < counter; ++i){
for (int j = 0; j < counter-1; ++j)
cout << counter << " ";
if (i % 5 == 0){
cout << endl;
}
}
cin.ignore();
return 0;
}
//*************************************End of Main***********************************************;
//***********************************Begin Functions*********************************************;
//*************Function to return mean value for the number of Grades to input*******************;
int mean(int Grades[], int counter){
int sum = 0;
int average;
for (int i = 0; i < counter; i++)
{
sum += Grades[i];
}
return average = sum / counter;
}
//************************Function to find the median grade/grades*******************************;
int median(int Grades[], int counter){
for (int i = 0; i < counter; ++i)
for (int j = 0; j < counter-1; ++j)
if (Grades[i] > Grades[i+1]){
swap(Grades[i], Grades[i+1]);
}
return (counter);
}
mean() is correct. At worst, you're getting incorrect division semantics from your usage of int. Dividing an int by another int will get you a truncated value. E.g. 1/2 is 0, not 0.5.
#include <iostream>
#include <vector>
#include <sstream>
#include <algorithm>
usingnamespace std;
int median(vector<int> grades);
int average(vector<int> grades);
int main()
{
vector<int> grades;
string input;
bool get_grades = true;
cout << "Type \"done\" at any time to finish\n";
while (get_grades == true)
{
cout << "Enter a grade: ";
cin >> input;
if (input == "done")
get_grades = false;
else
{
int int_input;
stringstream(input) >> int_input;
grades.push_back(int_input);
}
}
cout << "The average of the grades you have entered is " << average(grades) << "\n";
cout << "The median of the grades you entered is " << median(grades) << "\n";
}
int median(vector<int> grades)
{
int median = 0;
if (grades.size() % 2 == 0)
{
sort(grades.begin(), grades.end());
median = (grades.at((grades.size()-1)/2) + grades.at(grades.size()/2))/2;
}
else median = grades.at(grades.size()/2);
return median;
}
int average(vector<int> grades)
{
int average = 0;
for (vector<int>::iterator i = grades.begin(); i != grades.end(); ++i)
{
average += *i;
}
return average/grades.size();
}
Oh, I wish I could use that but, I am currently taking my first C++ class. At the moment I am taking it online. I was supposed to have this in by last night but, asked for an extension because I couldn't get anything out of it. We were given specific parameters wanted in the program to learn about building, calling and basically trying to declutter the main by using a few functions. We have not gotten to using string arrays yet, that is this week. Unfortunately there are few tutorials that they provide for multi-dimensional arrays. This will be the last class for this degree program I am taking online for a while. I have found that basically the courses require much more direct interaction for quicker question answering. This week is the last week of the course so, I will likely have one more program to ask for help with. I will post the updated code I have.
#include<iostream>
#include<algorithm>
#include<iomanip>
#include<cmath>
usingnamespace std;
//*****************************************Constants*********************************************;
constint size = 100;
//**************************************Function Prototypes**************************************;
int mean(int Grades[], int counter);
int median(int Grades[], int counter);
//******************************************Program Main*****************************************;
int main()
{
int Grades[100];
int counter = 0;
char input;
// Getting the number of grades and grades to be entred *;
do{
cout << "Please enter the grade.\n";
cin >> Grades[counter];
if (Grades[counter] <0 || Grades[counter] >100){
cout << "Please make sure the value entered is not less than 0 or greater than 100.\n";
cin >> Grades[counter];
}
cout << "Do you wish to enter another grade? Y or N?\n";
cin >> input;
counter++;
} while (counter < 100 && toupper(input) == 'Y');
if (counter == 100){
cout << "You have reached the maximum number of grades you can input.\n";
}
cout << "The average of the grades you have entered is " << mean(Grades, counter) << "." << endl;
cout << "The median grade of the grades you entered are " << median(Grades, counter) << "." << endl;
int rows = counter;
int cols = counter;
int Grades[20][5] = { {}, {} };
for (int i = 0; rows < counter; ++i){
for (int j = 0; cols < counter; ++j){
cout << Grades[rows][cols] << " ";
}
cout << endl;
}
cin.ignore();
return 0;
}
//*************************************End of Main***********************************************;
//***********************************Begin Functions*********************************************;
//*************Function to return mean value for the number of Grades to input*******************;
int mean(int Grades[], int counter){
int sum = 0;
int average;
for (int i = 0; i < counter; i++)
{
sum += Grades[i];
}
return average = sum / counter;
}
//************************Function to find the median grade/grades*******************************;
int median(int Grades[], int counter){
for (int i = 0; i < counter; ++i)
for (int j = 0; j < counter - 1; ++j)
if (Grades[i] > Grades[i + 1]){
swap(Grades[i], Grades[i + 1]);
}
return (counter);
}
Thanks.
