Compilare: user.cpp: In function ‘int GetCode()’: user.cpp:31:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] code = code * 3 + val[table[i]]; ^ user.cpp: In function ‘int main()’: user.cpp:127:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xsizero.in", "r", stdin); ^