soldati1.cpp: In member function 'HugeN& HugeN::operator*(const int&)': soldati1.cpp:26: warning: reference to local variable 'c' returned soldati1.cpp: In member function 'HugeN& HugeN::operator+(const HugeN&)': soldati1.cpp:47: warning: reference to local variable 'c' returned soldati1.cpp: In function 'int main()': soldati1.cpp:69: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result soldati1.cpp:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result soldati1.cpp:72: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result