Compilare: user.cpp:78:12: warning: overflow in implicit constant conversion [-Woverflow] int best = 9999999999; ^ user.cpp: In function ‘void scan(int&)’: user.cpp:15:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(;'0'> buffer[poz] || buffer[poz] > '9'; next); ^ user.cpp:16:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(;'0'<=buffer[poz] && buffer[poz] <='9'; next) ^ user.cpp: In function ‘int main()’: user.cpp:155:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("petrica.in","r",stdin); ^ user.cpp:156:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("petrica.out","w",stdout); ^