Compilare: user.cpp: In member function ‘HugeN HugeN::operator+=(const HugeN&)’: user.cpp:127:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In member function ‘HugeN& HugeN::operator*(int)’: user.cpp:195:11: warning: reference to local variable ‘temp’ returned [-Wreturn-local-addr] HugeN temp; ^ user.cpp: In member function ‘HugeN& HugeN::operator*(const HugeN&)’: user.cpp:219:11: warning: reference to local variable ‘temp’ returned [-Wreturn-local-addr] HugeN temp; ^ user.cpp: In function ‘int main()’: user.cpp:323:28: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[1000005]’ [-Wformat=] fscanf(fin, "%s", &line); ^ user.cpp:323:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s", &line); ^ user.cpp:325:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lld", &d); ^