Hello. I'm having some trouble with a section of a project I'm working on. The general task of the program is to read in a list of student exam answers from a file along with an answer key, score the answers, and print some reports on the results.

Okay, so I have created the following arrays:
Code:
char ansKey[MAXLEN];
char id[MAXCT][5];
char responses[MAXCT][MAXLEN];
int indices[MAXCT];
MAXCT = 40 and MAXLEN = 25

I'm am working on the first report. I have to grade the answers against the answer key. So I'm pretty sure I have to do a string compare where I compare each element of the answer key to the repective element in each student's responses. However, I'm not sure how to do this. Here's the function where I fill the arrays and compare the answer key and student responses:

Code:
int fillArrays(char key[], char iden[][5], char answers[][MAXLEN], int index[], int ct)
{
	ifstream inFile;
	inFile.open("P7Grades.txt");
	
	if (!inFile)
	{
		cout << "Cannot find input file.\n\n";
		system("PAUSE");
		exit(1);
	}
	
	inFile >> key;
	int i = -1;
 
	while (!inFile.eof() )
	{
		 i++;
		 inFile >> iden[i] >> answers[i];
		 index[i] = i;
	}
	
	for (int j = 0; i < ct; j++)
	{
		for (int k = 0; k < 20; k++)
		{
			if (strcmp(key[k], answers[j][k]) != 0)
				cout << "*" << answers[j][k] << "   ";
		}
	}
	
	return i;  
	inFile.close();  
}
When I run the code, I get this error message:

Code:
invalid conversion from 'char' to 'const char*'
(initializing argument 1 of 'int strcmp(const char*, const char*))
and
invalid conversion from 'char' to 'const char*'
(initializing argument 2 of 'int strcmp(const char*, const char*))

I'm not sure what I'm doing wrong. Any help is greatly appreciated. If you need additional info, please let me know.

I'm fairly new to C++, so if you guys could explain things as simple as possible, I would really appreciate it.
Thanks in advance