Ark's approach is much neater and most likely works. Your solution is very hard to read; the looping approach makes more sense.

Purely for the sake of simplicity, I would go with this route (doesn't use a second set of variables):


int main( int argc, char *argv[] ){
int *numberlist, i, n, min, max ;

n = atoi(...

For the purpose of adding a one dimensional array works well enough in representing a matrix. For more complicated operations though, it would likely be easier to define a matrix like int...

He meant for you to look at your notes. Doesn't using the resources you have make sense?

A semicolon can be useful in some preprocessor commands (probably some bizarre scenario), for example its perfectly valid in a #define statement. In this case we do need to know the compiler and its...

My problem was not with your skill level because yes, I have been there. My problem was with your attitude.

Maybe you should. Programming can be confusing and frustrating. If you can't deal with that even from a simple problem like this, maybe programming isn't for you.

printf ("*",i);
What is that supposed to do? Read up on printf. Just a hint, it doesn't print "*" i times. And adding a tab before every *? I don't think thats what you want.

It may seem strange at first, but try making the diamond yourself. Go through it slowly and see exactly what your thinking is on how to do it. Unless you can understand it yourself, you won't be able...

I don't see you putting any spaces to the left of your rows. C won't automatically middle align it for you...

Scanf can look simple, but it actually does a lot of work under the hood which obviously will slow down your code. Also, it can cause lots of problems if you don't know exactly how it is matching...

fgets to get the string, strtok to tokenize it. To do this multiple times, just put your code inside the body of a loop.

But the correct thing to do, as "\n" is a pointer, not a char. Comparison between a char and a pointer to a char cannot be expected to work properly (who knows what "properly" even means here?)

EDIT: Sorry, Aia beat me to it.

Can you explain that? I understand what Ancient Dragon did, but what about the "lock" concept?

Do not use goto: in C applications. It is very bad coding practice (see spaghetti code (http://en.wikipedia.org/wiki/Spaghetti_code)). Instead, use control structures like conditional statements,...

Then instead of setting the input variable to "18-2-21" (obviously not what csurfer intended), use fgets to get a line of user input. Also you could use sscanf() as long as you make sure to check its...

You can use a tm structure for the date of birth, convert it with mktime(), and subtract that from time(). Then convert your answer back into a tm struct.

A bubble sort but with the comparison flipped.

What is the problem with using || ? It is a completely valid part of the C language. There might be some obscure way of doing the same comparison without it, but it would be useless to even try it.

You're right, that's different from:
char sudoku[] = { '0', '0', '1', '0', '0', '0', '0', '0', '9',
'6', '0', '8', '7', '9', '4', '0', '2', '0',
'0', '0', '9',...

Point taken, sorry.

If you have to use array notation, also consider using a static variable instead of a parameter:
void enter(int *p_arr)
{
static int insert = 0;
printf("\nplease enter the number:");
...