Lines 11-12: numRow, numCol are uninitialized variables (garbage).
Line 14: How big do you think your array is if numRow and numCol are garbage?
Line 38: This does nothing.
Line 40-41: It's not necessary to pass cell as an argument since it's a member variable.
PLEASE USE CODE TAGS (the <> formatting button) when posting code.
It makes it easier to read your code and also easier to respond to your post. http://www.cplusplus.com/articles/jEywvCM9/
Hint: You can edit your post, highlight your code and press the <> formatting button.