felow up class project

[truguyy]

I have this project code i have to complete,but, I'm stuck, it has to display a table this is the description(this program analyzes the data from temperature sensors for each of the seven computers in a room).
this is what i did so far I'm stuck!!.Also this is a picture of the table display.Can you help me...

#include <iostream>
using namespace std;
const int NMBROFCLMNS = 8;
const int NMBROFROWS = 24;

void processArray(int TR[][NMBROFCLMNS]);
double avgerage(int [][NMBROFCLMNS], int, int);
int high(int TR[][NMBROFCLMNS], int, int);
int low(int [][NMBROFCLMNS], int, int);
int tempDifference(int [][NMBROFCLMNS], int , int );

int main ( ){
int tempReadings [][NMBROFCLMNS] = {
{96, 94, 95, 100, 115, 97, 92, 65},
{100, 92, 91, 110, 115, 99, 98, 65},
{120, 91, 99, 113, 115, 95, 99, 66},
{97, 99, 100, 114, 115, 100, 100, 66},
{99, 100, 111, 115, 115, 104, 104, 68},
{95, 130, 112, 101, 115, 100, 115, 65},
{94, 90, 95, 100, 105, 97, 120, 64},
{96, 94, 95, 100, 115, 97, 92, 65},
{100, 92, 91, 110, 115, 99, 98, 65},
{120, 91, 99, 113, 115, 95, 99, 66},
{97, 99, 100, 114, 115, 100, 100, 66},
{99, 100, 111, 115, 115, 104, 104, 68},
{95, 130, 112, 101, 115, 100, 115, 65},
{94, 90, 95, 100, 105, 97, 120, 64},
{96, 94, 95, 100, 115, 97, 92, 65},
{100, 92, 91, 110, 115, 99, 98, 65},
{120, 91, 99, 113, 115, 95, 99, 66},
{97, 99, 100, 114, 115, 100, 100, 66},
{99, 100, 111, 115, 115, 104, 104, 68},
{95, 130, 112, 101, 115, 100, 115, 65},
{94, 90, 95, 100, 105, 97, 120, 64},
{99, 100, 111, 115, 115, 104, 104, 68},
{92, 93, 94, 95, 96, 97, 98, 64},
{96, 94, 95, 100, 115, 97, 92, 64} };

processArray(tempReadings);

return 0;
} //end main

void processArray(int temperatures[][NMBROFCLMNS]){
//Create the required tables

//print the table heading
std::cout << "Low / High / Average Temperature Table \n";
std::cout << "Unit" << "\t\tLow" << "\t\tHigh" << "\t\tAVG\n";

//Iterate through each clmn of the array and calculate column stats
for (int clmn = 0; clmn < 8; clmn++) {
std::cout << clmn << "\t\t"
<< low(temperatures,NMBROFROWS,clmn) << "\t\t"
<< high(temperatures,NMBROFROWS,clmn) << "\t\t"
<< avgerage(temperatures,NMBROFROWS,clmn) <<"\n";
};

//calculate and display the temp difference table
tempDifference(temperatures,NMBROFROWS,NMBROFCLMNS);
}

void printColumn(int theArray[][NMBROFCLMNS], int nmbrOfRows, int TheClmn){
//prints the values in the given column (TheClmn)
for (int row = 0; row < nmbrOfRows; row++)
std::cout << theArray[row][TheClmn] << " ";
std::cout << std::endl;
}

int low(int theArray[][NMBROFCLMNS], int nmbrOfRows, int TheClmn){
//finds the lowest value in the given column of a two-dimensional array

} //end low

int high(int theArray[][NMBROFCLMNS], int nmbrOfRows, int TheClmn){
//finds the highest value in the given column of a two-dimensional array

} //end high

double avgerage(int theArray[][NMBROFCLMNS], int nmbrOfRows, int TheClmn){
//finds the average of the values in the given column of a two-dimensional array

} //end average

int tempDifference(int theArray[][NMBROFCLMNS], int nmbrOfRows, int nmbrOfClmns){
//creates a table that contains the difference between
//each computer's temperature and the room temperature
//for each time reading. Mark all differences
//greater than or equal to 50 with an asterisk.
//Formula: differnce = theArray[row][clmn] - theArray[row][7];

} //end temperature Difference


sorry couldn't paste copy of picture here....Can you help me.