Compilare: user.cpp: In instantiation of ‘void Heap<T>::Pop() [with T = int]’: user.cpp:122:15: required from here user.cpp:65:13: warning: unused variable ‘pz’ [-Wunused-variable] int pz = Size; ^ user.cpp: In function ‘void Parse(int&)’: user.cpp:15:58: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++PZ == DIM) fread(buffer,1,DIM,stdin), PZ = 0; ^ user.cpp:19:58: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++PZ == DIM) fread(buffer,1,DIM,stdin), PZ = 0; ^ user.cpp: In function ‘int main()’: user.cpp:132:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.in","r",stdin); ^ user.cpp:133:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.out","w",stdout); ^