Compilare: user.cpp: In function ‘int main()’: user.cpp:27:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("adunare.in","r",stdin); ^ user.cpp: In function ‘void Cit(int&)’: user.cpp:14:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer, 1, DIM, stdin), Position=0; ^ user.cpp:19:66: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++Position==DIM)fread(Buffer,1, DIM, stdin),Position=0; ^