Bingo Game

[passionateswimr]

Uhm, so hello! We have this project in our CS course that states that we have to generate our own Bingo Game program, we can use help or we can let a person/people work on it as long as we can understand it. But I chose the latter part of doing it with my partner, but by just asking for help. So here it is, I have this code for generating a card in a bingo game. It has a range, e.g. (B=1-15, I=16=30.....) until O that's until the number 75 only. It's already fixed, the only problem is that when I generate a number in the column B, and the other columns as well, the numbers are repeating. I've spent a day to 3 thinking and experimenting on my program, but still it repeats the number on a column! Uhh, can you guys help me with these? I'm a beginner, thank you! I also tried putting it in variables, and validating it one-by-one, but still it doesn't work. :(

#include<iostream>
#include<ctime>
#include<conio.h>
using namespace std;
void main()
{

	int num[5][5],row,col,a,b,c,d,e;
	int ask;
	
	srand(time(NULL));

	do{
		
		system("cls");
			cout<<"\n\n\t\t\t\t    BINGO GAME"<<endl;
	for(row=0;row<5;row++)
		for(col=0;col<5;col++)
			num[row][col]=rand()%100;
		cout<<"\n\n\tB\t\tI\t\tN\t\tG\t\tO"<<endl;
		cout<<"\n\n";
			for(row=0;row<5;row++)
			{
				for(col=0;col<5;col++)
					{
					if(col==0)
						{
							num[row][col]=rand()%15;

								if(row==0)
									a=num[row][col];
								else if(row==1)
									b=num[row][col];
								else if(row==2)
									c=num[row][col];
								else if(row==3)
									d=num[row][col];
								else if(row==4)
									e=num[row][col];
						}
							
					else if(col==1)
					{ 
						num[row][col]=rand()%30;
					     
                                                   do{

 							if(num[row][col]<=15)
							{
								num[row][col]=num[row][col]+30;
							}
							else if(num[row][col]>=31)
							{
								num[row][col]=num[row][col]-1;
							}
						}while((num[row][col]<=15)&&(num[row][col]>=31));

						}
						else if(col==2)
						{ num[row][col]=rand()%15;
						do{
							if(num[row][col]<=30)
							{
								num[row][col]=num[row][col]+45;
							}
							else if(num[row][col]>=46)
							{
								num[row][col]=num[row][col]-1;
							}
						}while((num[row][col]<=30)&&(num[row][col]>=46));

						}
		

						else if(col==3)
						{ num[row][col]=rand()%15;
							do{
							if(num[row][col]<=45)
							{
								num[row][col]=num[row][col]+60;
							}
							else if(num[row][col]>=61)
							{
								num[row][col]=num[row][col]-1;
							}
						}while((num[row][col]<=45)&&(num[row][col]>=61));
						}
						else if(col==4)
						{ num[row][col]=rand()%15;
							do{
							if(num[row][col]<=60)
							{
								num[row][col]=num[row][col]+60;
							}
							else if(num[row][col]>=91)
							{
								num[row][col]=num[row][col]-1;
							}
						}while((num[row][col]<=60)&&(num[row][col]>=76));
						}

					if((row==2)&&(col==2))
							cout<<"\tFREE\t";
						else
							cout<<"\t"<<num[row][col]<<"\t";
					}
					cout<<"\n";
			}

			
			{
				cout<<"\n\n\tIs this the card you want to use? [0 for no only.] : ";
				cin>>ask;
			}
	}
			while(ask!=0);

}

[whitenite1]

@passionateswimr

I compressed the filling of the bingo card columns. If you need help understanding any section of this code, please ask, and I'll explain it as well as I can.

// BINGO.cpp : main project file.

#include<iostream>
#include<ctime>
#include <windows.h> 
//#include<conio.h> // Not needed here

using namespace std;

void ClearScreen();

int main()
{

	int num[5][5],number,row,col;
	int ask;
	bool ok = true;

	srand((unsigned) time(0)); // Better srand() call

	do{

		 ClearScreen(); // Using system calls, isn't advised. Here's a good ClearScreen() function
		cout<<"\n\n\t\t\t\t    BINGO GAME"<<endl;
		for(row=0;row<5;row++)
			for(col=0;col<5;col++)
				num[row][col]=0; // Zeroes out all the rows & columns
		cout<<"\n\n\tB\t\tI\t\tN\t\tG\t\tO"<<endl;
		cout<<"\n\n";
		for(col = 0;col < 5; col++)
		{
			for (row=0;row < 5; row++)
			{
				do
				{
					ok = true;
					number = 1+(col*15) + rand()%15;
					for (int ck=0;ck<5;ck++)
					{
						if (number == num[ck][col])
								ok = false; // Same number found, so create a new number
					}
				}while (!ok);
			num[row][col] = number;
			}
		}

		for(row = 0;row < 5; row++)
		{
			for (col=0;col < 5; col++)
			{
				if((row==2)&&(col==2))
					cout<<"\tFREE\t";
				else
				cout << "\t" << num[row][col] << "\t";

			}
			cout << endl;
		}

		{
			cout<<"\n\n\tIs this the card you want to use? [0 for no only.] : ";
			cin>>ask;
		}
	} while(ask==0);

	return 0;
}

void ClearScreen()
  {
   DWORD n;
  DWORD size;
  COORD coord = {0};
  CONSOLE_SCREEN_BUFFER_INFO csbi;
  HANDLE h = GetStdHandle ( STD_OUTPUT_HANDLE );
  GetConsoleScreenBufferInfo ( h, &csbi );
  size = csbi.dwSize.X * csbi.dwSize.Y;
  FillConsoleOutputCharacter ( h, TEXT ( ' ' ), size, coord, &n );
  GetConsoleScreenBufferInfo ( h, &csbi );
  FillConsoleOutputAttribute ( h, csbi.wAttributes, size, coord, &n );
  SetConsoleCursorPosition ( h, coord );
  }