Compilare: user.cpp:6:10: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] char lg[1<<(MAXN)+1]; ^ user.cpp: In function ‘int main()’: user.cpp:28:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,n,conf,c,max,x; ^ user.cpp:28:15: warning: unused variable ‘conf’ [-Wunused-variable] int i,j,n,conf,c,max,x; ^ user.cpp:28:20: warning: unused variable ‘c’ [-Wunused-variable] int i,j,n,conf,c,max,x; ^ user.cpp:28:22: warning: unused variable ‘max’ [-Wunused-variable] int i,j,n,conf,c,max,x; ^ user.cpp:28:26: warning: unused variable ‘x’ [-Wunused-variable] int i,j,n,conf,c,max,x; ^