Compilare: user.cpp: In member function ‘HugeN& HugeN::operator+(const HugeN&)’: user.cpp:55:11: warning: reference to local variable ‘temp’ returned [-Wreturn-local-addr] HugeN temp; ^ user.cpp: In member function ‘HugeN& HugeN::operator-(const HugeN&)’: user.cpp:74:15: warning: reference to local variable ‘temp’ returned [-Wreturn-local-addr] HugeN temp; ^ user.cpp: In member function ‘int& HugeN::operator%(int)’: user.cpp:98:9: warning: reference to local variable ‘r’ returned [-Wreturn-local-addr] int i,r=0; ^ user.cpp: In constructor ‘HugeN::HugeN()’: user.cpp:26:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp: In function ‘int main()’: user.cpp:114:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("next.in","r",stdin); ^ user.cpp:115:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("next.out","w",stdout); ^ user.cpp:118:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&d); ^ user.cpp:120:10: warning: ‘r’ is used uninitialized in this function [-Wuninitialized] r=n%d; ^ /tmp/ccdo80e8.o: In function `HugeN::HugeN()': user.cpp:(.text+0x18): warning: the `gets' function is dangerous and should not be used.