Compilare: user.cpp: In function ‘void citeste(int&)’: user.cpp:44:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, in), poz = 0; ^ user.cpp:50:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, in), poz = 0; ^ user.cpp: In function ‘int main()’: user.cpp:60:34: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, in), poz = 0; ^ user.cpp:70:37: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, in), poz = 0; ^ user.cpp:76:37: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, in), poz = 0; ^ user.cpp:105:26: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out,"%d\n", D[p]); ^