Compilare: user.cpp: In function ‘void citire(int&)’: user.cpp:14:60: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==dim)fread(buff,1,dim,stdin),poz=0; ^ user.cpp:18:55: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==dim)fread(buff,1,dim,stdin),poz=0; ^ user.cpp: In function ‘void hai_sa_citesc()’: user.cpp:50:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.in","r",stdin); ^