Compilare: user.cpp: In function ‘LL Search(int, LL)’: user.cpp:120:24: warning: unused variable ‘mid’ [-Wunused-variable] int l{i}, r{p[i]}, mid; ^ user.cpp: In function ‘void Next()’: user.cpp:153:37: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(r, 1, MaxR, f), nr = 0; ^ user.cpp: In function ‘LL Search(int, LL)’: user.cpp:133:12: warning: ‘res’ may be used uninitialized in this function [-Wmaybe-uninitialized] return res; ^