Borderou de evaluare (job #281501)

Compilare: user.cpp: In function ‘int main()’: user.cpp:32:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:34:12: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:42:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:42:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:49:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:55:25: warning: array subscript has type ‘char’ [-Wchar-subscripts]