#include <iostream>
#include <iomanip>
#include <stdio.h>
#include <conio.h>
#include <conio2.h>
#include "windows.h"
#include <string>
#include <math.h>
#include <fstream>
#include <time.h>
#include <string>
using namespace std;
 /* Standard error macro for reporting API errors */
#define PERR(bSuccess, api){if(!(bSuccess)) printf("%s:Error %d from %s \   on line %d\n", __FILE__, GetLastError(), api, __LINE__);}
#define BLUE 1
#define GREEN 2
#define CYAN 3
#define RED 4
#define PURPLE 5
#define BROWN 6
#define LIGHTGREY 7
#define DARKGREY 8
#define LIGHTBLUE 9
#define LIGHTGREEN 10
#define LIGHTCYAN 11
#define PINK 12
#define LIGHTPURPLE 13
#define YELLOW 14
#define WHITE 15

// use x = 35 and y desired height for center.
/* void PlaceCursor(const int x, const int y) {

    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);

    COORD PlaceCursorHere;
    PlaceCursorHere.X = x;
    PlaceCursorHere.Y = y;

    SetConsoleCursorPosition(hConsole, PlaceCursorHere);
    return;
} */

void curpos(int x, int y)
{
  HANDLE hStdout;
  CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
  hStdout=GetStdHandle(STD_OUTPUT_HANDLE);
  GetConsoleScreenBufferInfo(hStdout, &csbiInfo);
  csbiInfo.dwCursorPosition.X=x;
  csbiInfo.dwCursorPosition.Y=y;
  SetConsoleCursorPosition(hStdout, csbiInfo.dwCursorPosition);
}
/*
COLOR CODES: // in windows.h
1   BLUE
2   GREEN
3   CYAN
4   RED
5   MAGENTA
6   BROWN
7   LIGHTGRAY
8   DARKGRAY
9   LIGHTBLUE
10  LIGHTGREEN
11  LIGHTCYAN
12  LIGHTRED
13  LIGHTMAGENTA
14  YELLOW
15  WHITE
*/
void setcolor(unsigned int color)
{
    if (color >15 || color <=0)
    {
        cout <<"Error" <<endl;

    }
    else
    {
        HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE);
        SetConsoleTextAttribute(hcon,color);
    }
}
int GCD(int a, int b)
{
    while( 1 )
    {
        a = a % b;
                if( a == 0 )
                        return b;
                b = b % a;

        if( b == 0 )
                        return a;
    }
}

void ClearScreen()
  {
  HANDLE                     hStdOut;
  CONSOLE_SCREEN_BUFFER_INFO csbi;
  DWORD                      count;
  DWORD                      cellCount;
  COORD                      homeCoords = { 0, 0 };

  hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );
  if (hStdOut == INVALID_HANDLE_VALUE) return;

  /* Get the number of cells in the current buffer */
  if (!GetConsoleScreenBufferInfo( hStdOut, &csbi )) return;
  cellCount = csbi.dwSize.X *csbi.dwSize.Y;

  /* Fill the entire buffer with spaces */
  if (!FillConsoleOutputCharacter(
    hStdOut,
    (TCHAR) ' ',
    cellCount,
    homeCoords,
    &count
    )) return;

  /* Fill the entire buffer with the current colors and attributes */
  if (!FillConsoleOutputAttribute(
    hStdOut,
    csbi.wAttributes,
    cellCount,
    homeCoords,
    &count
    )) return;

  /* Move the cursor home */
  SetConsoleCursorPosition( hStdOut, homeCoords );
  }

void SetBackColor(int backC)
 {
     WORD wColor;
    //We will need this handle to get the current forground attribute
     HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
     CONSOLE_SCREEN_BUFFER_INFO csbi;
     //We use csbi for the wAttributes word.

     if (GetConsoleScreenBufferInfo(hStdOut, &csbi)) {
         //Mask out all but the forground attribute, and add in the background color
         wColor = (csbi.wAttributes & 0x0F) + ((backC & 0x0F) << 4);
         SetConsoleTextAttribute(hStdOut, wColor);
    }
 }