This program should do the following: --Write a program that read a file consist

Question

This program should do the following:

--Write a program that read a file consisting of students test scores in the range of 0-200.
--Then determine the number of students having scores in each of the following ranges:0-24, 25-49, 50-74, 75-99, 100-124, 125-149, 150-174, and 175-200.

--Output the score ranges and the number of students.
--Run your program with the following input data: 76,89,150,135,200,76,12,100,150,28,178,189,16 7,200,175,150,87,99,129,149,176,200,87,35,157,189.

My comments:
I have the coding done, but cannot make the program output any information.

Can you correct the program so that it gives an output indicated above?
Thank you.

#include
#include
#include

using namespace std;

const int maxCategory = 7;
int getCategory(int);
void initialize(int student[]);
void getStudent(int category, int student[]);
void printArray(int category, int student[]);

int main()
{
int category;
int score;
int student[maxCategory];
ifstream infile;
infile.open("score.txt");

if(!infile)
{
cout << "Cannot open input file." << endl;
system("pause");
return 0 ;
}
initialize(student);
infile>>score;

while (!infile.eof())
{
category = getCategory(score);
getStudent(category, student);

infile>>score;
}
infile.close();
printArray(category, student);

system("pause");
return 0;
}

void initialize(int student[])
{
int j;
for(j=0; j<=maxCategory; j++)
{
student[j]=0;
}
}
void getStudent(int c, int s[])
{
if (c<=maxCategory)
{
s[c]++;
}
}
void printArray(int category, int student[])
{
string scoreRange;
cout << "Score Range" << " ";
cout << "Number of Students" << endl;

for (category=0; category<=maxCategory; category++)
{
switch(category)
{
case 0:
scoreRange="0-24";
break;
case 1:
scoreRange="25-49";
break;
case 2:
scoreRange="50-74";
break;
case 3:
scoreRange="75-99";
break;
case 4:
scoreRange="100-124";
break;
case 5:
scoreRange="125-149";
break;
case 6:
scoreRange="150-174";
break;
case 7:
scoreRange="175-200";
break;
}
cout << scoreRange <<" ";
cout << student[category]<< endl;
}
}
int getCategory(int score)
{
int scoreRange;

if (score>=0 && score<25)
scoreRange=0;
else if (score>=25 && score<50)
scoreRange=1;
else if (score>=50 && score<75)
scoreRange=2;
else if (score>=75 && score<100)
scoreRange=3;
else if (score>=100 && score<125)
scoreRange=4;
else if (score>=125 && score<150)
scoreRange=5;
else if (score>=150 && score<175)
scoreRange=6;
else if (score>=175 && score<=200)
scoreRange=7;


else
cout <
return scoreRange;
}

Explanation / Answer

#include <iostream>
#include <fstream>
#include <string>

using namespace std;

const int maxCategory = 8; //You have 8 categories (0-24, 25-49, 50-74, 75-99, 100-124, 125-149, 150-174, and 175-200) so why did you put 7?
int getCategory(int);
void initialize(int student[]);
void getStudent(int category, int student[]);
void printArray(int category, int student[]);

int main()
{
   int category;
   int score;
   int student[maxCategory]; //should be array of 8 ints instead of 7 as you defined maxCategory...
   ifstream infile;
   infile.open("score.txt");

   if(!infile)
   {
      cout << "Cannot open input file." << endl;
      system("pause");
      return 0;
   }
   initialize(student);
   infile>>score;

   while (!infile.eof())
   {
      category = getCategory(score);
      getStudent(category, student);

      infile>>score;
   }
   infile.close();
   printArray(category, student);

   system("pause");
   return 0;
}

void initialize(int student[])
{
   int j;
   for(j = 0; j < maxCategory; j++) //for array index range from 0 to (elements - 1), so j should be run from 0 to 7 and does not have to equal maxCategory, just put j < maxCategory
   {
      student[j] = 0;
   }
}

void getStudent(int c, int s[])
{
   if (c < maxCategory) //same here does not need c <=
   {
      s[c]++;
   }
}
void printArray(int category, int student[])
{
   string scoreRange;
   cout << "Score Range" << " ";
   cout << "Number of Students" << endl;

   for (category = 0; category < maxCategory; category++) //here too
   {
      switch(category)
      {
         case 0:
         scoreRange="0-24";
         break;
         case 1:
         scoreRange="25-49";
         break;
         case 2:
         scoreRange="50-74";
         break;
         case 3:
         scoreRange="75-99";
         break;
         case 4:
         scoreRange="100-124";
         break;
         case 5:
         scoreRange="125-149";
         break;
         case 6:
         scoreRange="150-174";
         break;
         case 7:
         scoreRange="175-200";
         break;
      }
      cout << scoreRange << " ";
      cout << student[category] << endl;
   }
}

int getCategory(int score)
{
   int scoreRange;

   if (score>=0 && score<25)
      scoreRange=0;
   else if (score>=25 && score<50)
      scoreRange=1;
   else if (score>=50 && score<75)
      scoreRange=2;
   else if (score>=75 && score<100)
      scoreRange=3;
   else if (score>=100 && score<125)
      scoreRange=4;
   else if (score>=125 && score<150)
      scoreRange=5;
   else if (score>=150 && score<175)
      scoreRange=6;
   else if (score>=175 && score<=200)
      scoreRange=7;
   else
      cout << "Out of range 0-200 "; //it should print some error message, i guess you missed it when copied the code
   return scoreRange;
}

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