Borderou de evaluare (job #33069)

Compilare: user.c: In function ‘Litera’: user.c:20:2: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.c: In function ‘Expr’: user.c:41:2: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.c: In function ‘main’: user.c:76:3: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.c:77:3: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.c:83:4: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.c:69:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:74:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]