Compilare: user.cpp: In function ‘void Mult(char*, long unsigned int)’: user.cpp:18: warning: array subscript has type ‘char’ user.cpp: In function ‘void Divide(char*, long unsigned int)’: user.cpp:33: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result