Thread: core dump....

I get core dump when I run this code :

Code:

for(i=0;i<3;i++)
	{
	for(j=0;j<3;j++
		{
		for (k=0;k<5;k++)
			{
			for(l=0;l<20;l++)
				{
				fprintf(stdout,"%s", inv [i] [j] [k] [l]);
				}
			} 
		}
	}

it also gives me this warning while compiling
(for the fprintf line):
warning: format argument is not a pointer (arg 3)

never mind I fixed the code by writing taking away the last loop.