YOU CANNOT USE THIS following things in the HEADER FILE. any function in header

Question

YOU CANNOT USE THIS following things in the HEADER FILE.

any function in header file <algorithm>

array class in header file <array>

complex class, or any function in the header file <complex>

deque class in header file <deque>

iterator class in header <iterator>

list class in header file <list>

map class in header file <map>

queue class in header file <queue>

set class in header file <set>

stack class in header file <stack>

any function in the header file <utility>

any function in the class <random>

vector class in header <vector>

Project objective: write a program that takes a list of final scores for a class and determines: 1) the mean (Greek letter mu)2) the standard deviation (Greek letter sigma). and 3] the number of grades in each category (A. A-, B+, B-, C+. C, C-, D+, D an Use the following formulas for the standard deviation and mean, respectively. (zi-A)2, where = N .ri 2- 2- Prompt the user for the name of a file containing the final scores, up to 100 scores, such as (without the commas): 100, 94, 59,83,57,11,92,76,37,89, 74, 59,65,79, 49,89,89,75, 64, 82, 15, 74, 82, 68, 92,61,33,95, 91,82,89,64, 43, 93, 86, 65, 72, 40, 42,90, 81,62,90,89,35,81,48,33,94,81,76,86,67, 70, 100, 80, 83, 78,96, 58 Note: m=71.47 s= 20.98 Determine the maximum score, the minimum score, the range of scores (maximum - minimum) and a table with column headings: Grade Number of scores using the following scoring (where m is the mean, s is the standard deviation, and x is an individual score): Place the output in a file, in an orderly format, and inform the user of the name of the file before exiting,

Explanation / Answer

#include <iostream>
#include <math.h>
using namespace std;

int main(){
   ifstream infile;
   string s;
   cout << "Enter the File Name " << endl;
   cin >> s;
   infile.open(s.c_str(),'r');
   int x;
   float sum = 0.0;
   int min = 101;           // Minimum
   int max = -1;            // Maximum
   int n = 1;
   while(cin >> x){
       sum += x;
       n += 1;
       if (min > x) min = x;
       if (max < x) max = x;
   }
   float mean = sum/n;   // Mean
   infile.close();

   infile.open(s.c_str(),'r');
   float devation = 0.0;
   while (cin >> x){
       devation += ((x - mean)*(x-mean))/n;
   }
   devation = sqrt(devation);
   infile.close();

   ofstream outfile;
   outfile.open("output.txt");
   outfile << "Mean is : " << means << endl;
   outfile << "Standard Deviation is : " + devation << endl;
   outfile << "Maximum is : " << max << endl;
   outfile << "Minimum is : " << min << endl;
   outfile << "Range is    : " << max - min << endl;
   outfile.close();
   return 0;
}

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