Borderou de evaluare (job #69818)

Compilare: user.cpp: In function ‘int main()’: user.cpp:17:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:31:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:31:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] user.cpp:12:15: warning: unused variable ‘a’ [-Wunused-variable] user.cpp:12:17: warning: unused variable ‘b’ [-Wunused-variable] user.cpp:9:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]