Compilare: user.cpp: In member function ‘int HugeN::cmp(const HugeN&)’: user.cpp:29:24: warning: unused variable ‘n’ [-Wunused-variable] int i, cif1, cif2, n; ^ user.cpp: In member function ‘HugeN HugeN::operator+(int)’: user.cpp:161:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:348:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("numar4.in", "r", stdin); ^ user.cpp:349:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("numar4.out", "w", stdout); ^ user.cpp:351:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d\n", &ni, &nz); ^