Compilare: main.cpp: In member function 'HugeN HugeN::operator+=(HugeN)': main.cpp:73:9: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In member function 'HugeN HugeN::operator+=(int)': main.cpp:88:9: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:107:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("indep.in", "r", stdin); ^ main.cpp:108:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("indep.out", "w", stdout); ^ main.cpp:111:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:114:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^