hw2

#include <stdio.h>
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <iomanip>
#include <fstream>
using namespace std;

int randgen(int magnitude);
int subtract(int, int deduction);
void populateArray(int a[][20],int,int);
void getTotal(int a[][20],int,int,int&);
void getAverage(int a[][20],int,int,float&, int);
int getRowTotal(int a[][20],int,int,int);
int getColumnTotal(int a[][20],int,int,int);
int getHighestInRow(int table[][20],int,int);
int getLowestInRow(int table[][20],int,int);
void fout(ofstream&, int table[][20],int, int, int, float); //This function is HUGE; it takes care of practically all the output operations besides the pretty bars
void pretty(int, ofstream &file); //my previous professor, prof. Ahren, said it is good to personalize our work (this is a generalization). If you're going to mark me down for this please don't and tell me not to do things like this in the future?

int main()
{
    srand(time(NULL));
    ofstream file;
    file.open("out.txt");
    int columns=randgen(16)+5, rows=randgen(16)+5, table[20][20]={0}, total; //awwwww yeah look at that functions as initializers
    float average;
    populateArray(table,rows,columns);
    getTotal(table,rows,columns,total);
    getAverage(table,rows,columns,average, total);
    fout(file, table, rows, columns, total, average);
    return 0;
}

void fout(ofstream &file, int table[][20],int rows, int columns, int total, float average)
{
    file << setw(2) << left << rows << " " << "rows\n";
    file << setw(2) << left << columns << " "<< "columns\n";

    for(int i=0;i<rows;i++){
        if(i==0)
            pretty(columns,file);
        for(int k=0;k<columns;k++){
            file << setw(3) << right << table[i][k] << " ";
            if(k==columns-1)
                file << endl;
        }
        if(i==rows-1)
            pretty(columns,file);
    }
    file << endl;
    for(int index=0;index<rows;index++){
        file << "Row " << setw(2) << index+1 << " Total: " << right << setw(4) << getRowTotal(table,columns,rows,index);
        file << setw(9)<< " Highest: " << setw(3) << getHighestInRow(table, index, columns);
        file << setw(9)<< " Lowest: " << setw(3) << getLowestInRow(table,  index,  columns);
        file << endl;

    }

    file << endl;
    for(int indexx=0;indexx<columns;indexx++)
        file << setw(7) << "Column " << setw(2) << indexx+1 << setw(7) << " Total: " << setw(4) << getColumnTotal(table,columns,rows,indexx) << endl;

    file << endl;
    file << "The total of all " << columns*rows << " numbers is: " << total <<". ";
    file << "The average is " << average;
    pretty(columns,file);
    return;
}

void pretty(int columns, ofstream &file)
{
    static int greeting=0;
    if (greeting!=2){
        for(int pretty=0;pretty<columns*4;pretty++)
        file << "=";
        file << endl;
    }
    else if (greeting==2)
        cout << "Look in the same folder that HOMEWORK2 is saved in. You will\nfind a text file named out.txt; open it up!\n(You can close this window now)\n";
    greeting++;
}

int getLowestInRow(int table[][20], int row, int columns)
{
    int lowest=666;
    for(int index=0;index<columns;index++)
        if(table[row][index]<lowest)
            lowest=table[row][index];
    return lowest;
}

int getHighestInRow(int table[][20], int row, int columns)
{
    int highest=0;
    for(int index=0;index<columns;index++)
        if(table[row][index]>highest)
            highest=table[row][index];
    return highest;
}

int getColumnTotal(int table[][20], int columns, int rows, int column)
{
    int columnTotal=0;
    for(int index=0;index<rows; index++)
        columnTotal+=table[index][column];
    return columnTotal;
}

int getRowTotal(int table[][20], int columns, int rows, int row)
{
    int rowTotal=0;
    for(int index=0;index<columns; index++)
        rowTotal+=table[row][index];
    return rowTotal;
}
void getAverage(int table[][20],int rows, int columns, float &average, int total)
{
    average=static_cast<float>(total)/(rows*columns);
    return;
}

void getTotal(int table[][20], int rows, int columns, int &total)
{
    total=0;
    for(int i=0;i<rows;i++)
        for(int k=0;k<columns;k++){
            total+=table[i][k];
        }
    return;
}

int randgen(int magnitude)
{
    return rand()%magnitude;
}

int subtract(int number, int deduction)
{
    if(rand()%2==0)
        return number-deduction;
    else
        return number;
}

void populateArray(int a[][20],int rows,int columns)
{
    for(int i=0;i<rows;i++)
        for(int k=0;k<columns;k++)
            a[i][k]=subtract(randgen(26),25);
}