Borderou de evaluare (job #226983)

Compilare: user.cpp: In function ‘int main()’: user.cpp:38:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:40:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:41:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:44:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:48:20: warning: unused variable ‘k’ [-Wunused-variable] user.cpp:46:8: warning: ‘ch’ may be used uninitialized in this function [-Wuninitialized]