Your assignment is to convert student marks to grades. An experienced C++ progra

Question

Your assignment is to convert student marks to grades. An experienced C++ programmer will achieve this task in about 40 minutes and take about 100 lines of code. As inexperienced programmers, the project is expected to require 4 hours work per week over 5 weeks.

Your exchange must:

Requirement 1 The program MUST read in data from a file.

Requirement 2 The program MUST provide a user interface option and functionality to order the grades by Student Name, by Student Number or by Grade. • Hint: this is most easily implemented as a list of structures.

Requirement 3 The program SHOULD provide a user interface to output the reordered data in a new file.

Explanation / Answer

Solution:

Note: Please save all the .txt file in the same package/folder before executing the code.

code:

#include <stdio.h>

#include <stdlib.h>

int main()

{

FILE *inputFile,*fileOutput;

int i,j = 0;

char studentNames [20][40],ch;

int studentGrades [20][10];

inputFile = fopen("grades.txt", "r");

if (inputFile == NULL)

printf("File does not exist");

else{

while (fscanf(inputFile,"%[^ ]s",studentNames[i])!=EOF) //while there are student studentNames in the file

{

for(j=0;j<10;j++) //reading 10 studentNames, corresponding to the student

fscanf(inputFile, "%d", &studentGrades[i][j]);

fscanf(inputFile,"%c",&ch); //reading the extra newline character after the 10 th grade

i++; //incrementing i so it points for next student

}

fileOutput = fopen("averages.txt", "w"); //opening output file

int size = i; //no.of students == i;

for(i=0;i<size;i++) //For each student

{

double total=0,average;

for(j=0;j<10;j++) //calculating the total

total=total+studentGrades[i][j];

average = total/10; //calculating the average

fprintf(fileOutput,"%s %.1lf ",studentNames[i],average); //Printing to the output file

}

fclose(inputFile); //Closing the files

fclose(fileOutput);

}

return 0;

}

I hope this helps if you find any problem. Please comment below. Don't forget to give a thumbs up if you liked it. :)

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