copying a string to erase a space

[roflberryfarms]

beginner here:
This probably look rudementary but I have having a hard time understanding strings. What I want to do is copy a single character back to the character before it. So if I have the string
abc
after my code executes it would be
bc
except what my goal is, is to eliminate spaces. Eg
\n\n\nCPP
becomes
CPP
I have to accomplish this using C strings. So here is my code that is not working

 for (p=0; p<i; p++)
     {
         do
         {
         strcpy(line[t][p], line[t+1][p]);
         }while(line[t][p]=='\n');
         t++;
     }

errors
invalid conversion from `char' to `char*'
and
initializing argument 1 of `char* strcpy(char*, const char*)'
I get both those errors twice

I am not sure how to accomplish this task using C strings so any help would be greatly appreciated.

[vlad from moscow]

I can guess that line is a two dimensional character array defined something as

char line[N][M];

In this case line[t][p] is a single character but function strcpy requires pointer to character as its argument.

[roflberryfarms]

Yes it is I guess I forgot to include the declaration being
char line[500][100];
so I need to use a pointer to use the strcpy function? I have never used pointers before so I'm not to sure

[vlad from moscow]

Always read description of a function before using it.