help runtime error because of rand()

Code:

#include <iostream>

int main()
{
    int Age;
    int IDontFkingKnow;
    int array[16][16];
    std::cout<<"Please enter age: ";
    std::cin>>Age;
    while (Age<16, Age++)
    {
        IDontFkingKnow=rand();
        array[Age][IDontFkingKnow]=Age * IDontFkingKnow;
    }
    std::cout<<Age<<"*"<<IDontFkingKnow<<"="<<array[Age][IDontFkingKnow]<<" ";
    std::cout<<"\n";
    std::cin.get();
    return 0;
}

It compiles perfectly but how can I use rand to only go thru 0-15?

http://faq.cprogramming.com/cgi-bin/...&id=1043284385

thanks for the quick response

Code:

while (Age<16, Age++)

You might want to check the format for a while() loop again. That statement is eqivalent to:

while(Age++)

which will result in an infinite loop if the user enters a positive number for their age. The 'comma operator' first evaluates what on its left and what's on its right, and then it replaces both terms by the result of what's on the right.

Originally Posted by 7stud

Code:

while (Age<16, Age++)

You might want to check the format for a while() loop again. That statement is eqivalent to:

while(Age++)

which will result in an infinite loop if the user enters a positive number for their age. The 'comma operator' replaces what's on its left and what's on its right, by the result of what's on the right.

lol thanks didnt know that, that could be why it keeps crashing :-p

but im currently working on a tic tac toe game, but i dont know how to use arrays that well...
let alone know where to start

Code:

#include <iostream>
#include <windows.h>
#include <string>

using namespace std;

int main()
{
    char board[3][3];
    char X;
    char O;
    string option;
    
    cout<<"Want to play a game of tic tac toe?\n";
    cin>>option;
    if (option=="Yes"||option=="yes")
    {
        goto start_of_game;
    }
    if (option=="No"||option=="no")
    {
        goto end_of_game;
    }
    start_of_game:
        cout<<"["<<board<<"]["<<board<<"]["<<board<<"]\n";
        cout<<"["<<board<<"]["<<board<<"]["<<board<<"]\n";
        cout<<"["<<board<<"]["<<board<<"]["<<board<<"]\n";
        cin.get();
    end_of_game:
    cin.get();
    return 0;
}

goto start_of_game;

goto end_of_game;

That would be something to avoid like the plague.

You really need to practice the basics with simpler programs:

1) Declare an array of integers and use a for-loop to assign the numbers 0-9 to the elements of the array. Then output the contents of the array using another for-loop.

2) Use a while loop to prompt the user for a number, and then display the number they entered back to them. Keep doing that until the user enters the number -1.

3) Declare a small two dimensional array with 3 rows and 2 columns. Use two for-loops, one nested inside the other to get input from the user to enter into the array. Then display all the numbers entered into the array using two nested for loops.

4) Read some tutorials on functions, and practice by creating some simple functions. You can use functions to do some of the things you did above in main().

I decided to start fresh

Code:

#declare array 0,1,2,3,4,5,6,7,8,9
#include <iostream>

int main()
{
    int array[3][2];
    int input;
    int X;
    int O;
    while(input>=0)
    {
        std::cout<<"Please enter a number 0-9 or -1 to quit: ";
        std::cin>>input;
        std::cout<<input;
    for(X=0;X<4;X++)
    {
        for(O=0;O<3;O++)

I have to start thinking harder

Code:

#declare array 0,1,2,3,4,5,6,7,8,9

What?

I dont know i dont know how to declare arrays so that seemed logical :'(

Code:

int array[10];
int array_initialized[10] = {1, 2, 3};
int array_default_size[] = {1, 2, 3, 4, 5};
int a[10], x;
for(x = 0; x < 10; x ++) a[x] = x;

See the tutorials or your book.

#declare array 0,1,2,3,4,5,6,7,8,9

I dont know i dont know how to declare arrays so that seemed logical :'(

It did? Why? Maybe you should try:

#Mr. Compiler please execute the program I am thinking of right now;

Code:

int array[3][2];

for(X=0;X<4;X++)
{
     for(O=0;O<3;O++)

This part isn't going to work. I'd suggest that you just use one dimension in your array, that will make life a lot easier I also recommend you to read a tutorial about arrays. When you create an array, you specify how many 'boxes' it should contain. You specify that it should have 3 boxes, but later you try to access the fourth box which will give you a crash.

Keep struggeling, I remember how hard I thought it was to learn programming at first. And it was not easy.

Good luck

The Wazaa