Compilare: user.cpp: In function ‘int main()’: user.cpp:71:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] lR = lR + dLin[dir[l][c]]; ^ user.cpp:72:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] cR = cR + dCol[dir[l][c]]; ^ user.cpp:31:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:34:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &matr[l][c]); ^