$//$ Put in a prologue

#include

#include

#include

#include

using namespace std;

const unsigned MAX$\_$MATRIX$\_$SIZE $=20$;

const unsigned WIDTH$\_$DISPLAY $=12$;

bool readMatrixFromFile$($int$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned&$,$ unsigned&$,$ ifstream&$)$;

void displayMatrix$($int$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned, unsigned$)$;

void displayCalcMatrixSums$($int$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned, unsigned, int$[$MAX$\_$MATRIX$\_$SIZE$])$;

void symmetryCheckMatrix$($int$[],$ unsigned, unsigned$)$;

void sortMatrixRows$($int$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned, unsigned$)$;

int main$()\{$

unsigned height,

width;

int matrix$[$MAX$\_$MATRIX$\_$SIZE$][$MAX$\_$MATRIX$\_$SIZE$],$

colSums$[$MAX$\_$MATRIX$\_$SIZE$]$;

string INPUT$\_$FILE$\_$NAME $=$ "matrixes.txt$"$;

ifstream inputFileStreamObj$($INPUT$\_$FILE$\_$NAME$)$;

if $($inputFileStreamObj$.$fail$())\{$

cout $<<$ "File $"<<$ INPUT$\_$FILE$\_$NAME $<<$ "could not be opened $!"<<$ endl;

cout $<<$ endl $<<$ "Press the enter key once or twice to leave..." $<<$ endl; cin.ignore$()$; cin.get$()$;

exit$($EXIT$\_$FAILURE$)$;

$\}$

do $\{$

if $($readMatrixFromFile$($matrix$,$ height, width, inputFileStreamObj$))$

break;

cout $<<$ "Input:" $<<$ endl;

displayMatrix$($matrix$,$ height, width$)$;

displayCalcMatrixSums$($matrix$,$ height, width, colSums$)$;

symmetryCheckMatrix$($colSums$,$ width, height$)$;

sortMatrixRows$($matrix$,$ width, height$)$;

cout $<<$ "Sorted:" $<<$ endl;

displayMatrix$($matrix$,$ height, width$)$;

cout $<<$ endl $<<$ "Press the enter key once or twice to continue..." $<<$ endl; cin.ignore$()$; cin.get$()$;

$\}$ while $($true$)$;

cout $<<$ "Program Done" $<<$ endl;

exit$($EXIT$\_$SUCCESS$)$;

$\}$

bool readMatrixFromFile$($int matrix$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned& height, unsigned& width, ifstream& inputFileStreamObj$)\{$

return$($false$)$;

$\}$

void displayMatrix$($int matrix$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned height, unsigned width$)\{$

$\}$

void displayCalcMatrixSums$($int matrix$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned height, unsigned width, int colSums$[$MAX$\_$MATRIX$\_$SIZE$])\{$

$\}$

void symmetryCheckMatrix$($int colSums$[],$ unsigned width, unsigned height$)\{$

$\}$

void sortMatrixRows$($int matrix$[][$MAX$\_$MATRIX$\_$SIZE$],$ unsigned width, unsigned height$)\{$

$\}$