The program is supposed to pen and read a file with student’s scores for a semester. Display a chart with the average and median scores for each section and each lab.
Example: CS 111 this semester has 7 sections and 10 labs. The output will be a chart with 7 rows and 20 columns. Seven rows for sections 1 to 7. Two columns (average and median) for each of the 10 labs.
Note: The average is rounded up to the nearest integer you must write your own function int myCeil(double n) that takes say 1.01 and returns 2 or takes 1.0 and returns 1
My problem is that i'm having trouble coming up with the median function, the average function might be giving the seg fault. Anway I can't figure it out. You should find an attachment for the in.txt file at the bottom of this message.
#include <iostream>
#include <fstream>
#include <cstdlib>
using namespace std;
// Prototypes for Program
void getArrayValues(int scores [] [50], int labs [], int numsections, int numlabs);
void average(int scores [] [50], int labs [], int numsections, int numlabs, int stAve[]);
//void median(int scores [] [50], int labs []);
void BubbleSort(int scores [] [50], int labs [], int numsections, int numlabs);
int main() {
// Declare Variables to Store Array Information
int scores [10] [50];
int labs [10];
int numsections;
int numlabs;
int stAve[numsections];
getArrayValues(scores, labs, numsections, numlabs);
average(scores, labs, numsections, numlabs, stAve);
//median(scores,labs);
BubbleSort(scores,labs,numsections,numlabs);
return 0;
}
void getArrayValues(int scores [] [50], int labs [], int numsections, int numlabs) {
// Declare Stream and Open Text File
ifstream inStream;
inStream.open("in.txt");
if (inStream.fail()) {
cerr << "Can't open file!\n";
exit(1);
}
else {
while (!inStream.eof()){
//"Garbage" Variable to Get Ride of Student ID Number
int id;
// Get Number of Sections and Labs from Text File
inStream >> numsections >> numlabs;
// Nested For Loops to Read Info from Text File into Array
for (int i = 0; i < numsections; i++) {
inStream >> labs[i];
for (int j = 0; j < labs[i]; j++) {
inStream >> id;
for(int k = 0; k < numlabs; k++){
inStream >> scores[k][i];
}
}
}
// Close File
inStream.close();
}
}
}
void average(int scores [] [50], int labs [], int numsections, int numlabs, int stAve[])
{
for(int stId = 0; stId <= numsections; stId++)
{
int sum = 0;
for(int labNum = 1; labNum <= numsections; labNum++)
sum = sum + scores[stId-1][labNum-1];
stAve[stId-1] = sum/numlabs;
}
}
/*void median(int scores [] [50], int labs [])
{
int n = 0; //use
long hold = 0;
long other = 0;
int holder = 0; //use
int m = 0; //use
if (labs % 2) //If number is odd means the middle number is median
{
n = (labs/2); //finds the very middle number
n += .5; //it will return a #.5 so we add another .5 to counter that
hold = static_cast<int>(n); // we convert #.0 to just #
holder = scores[hold]; //holder = the # stored at scores[hold]
}
else
{
hold = (labs/2); //if choice is even then hold is equal to the higher middle #
other = (hold - 1);//other is the lower middle number
n = scores[hold]; //assign the value in hold to n
m = scores[other];//asign the value in other to m
holder = ((n+m)/2);//find the average of the 2 middle numbers
}
}
*/
void BubbleSort (int scores [] [50], int labs [], int numsections, int numlabs) {
int i, j, k, temp;
for(i=0; i<10; i++)
for(j=0; j<20; j++)
for(k=0; k<20; k++){
if(scores[i][j] < scores[i][k]){
temp = scores[i][j];
scores[i][j] = scores[i][k];
scores[i][k] = temp;
}
}
for(i=0; i<10; i++)
for(j=0; j<20; j++){
if(scores[i][0] < scores[j][0]){
for(k=0; k<20; k++){
labs[0] = scores[i][k];
scores[i][k] = scores[j][k];
scores[j][k] = labs[0];
}
}
}
}attached is the in.txt file
