Compilare: user.cpp: In function ‘int bin_src(int)’: user.cpp:18:19: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if(res ^ step <= n && aib[res ^ step] < x) { ^ user.cpp: In function ‘int removeel(int)’: user.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^