Compilare: user.cpp: In function ‘long long int lgput(int, int)’: user.cpp:13:7: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(e&1 == 1) ^ user.cpp:10:13: warning: unused variable ‘cb’ [-Wunused-variable] int r = 1, cb = b; ^ user.cpp: In function ‘int main()’: user.cpp:29:6: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (n*i == 0) ^