Compilare: user.cpp: In function ‘int verif(int, int, int)’: user.cpp:13:23: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] return ( (k&(1<<s)-1)==(cod&(1<<s)-1) ); ^ user.cpp:13:39: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] return ( (k&(1<<s)-1)==(cod&(1<<s)-1) ); ^ user.cpp: In function ‘int main()’: user.cpp:26:33: warning: unused variable ‘x’ [-Wunused-variable] { int p,n,m,t,s,nstart,mstart,k,x, cod,i,j; ^ user.cpp:26:40: warning: unused variable ‘cod’ [-Wunused-variable] { int p,n,m,t,s,nstart,mstart,k,x, cod,i,j; ^ user.cpp:27:9: warning: unused variable ‘xm’ [-Wunused-variable] int xm,ym,v[100000]; ^ user.cpp:27:12: warning: unused variable ‘ym’ [-Wunused-variable] int xm,ym,v[100000]; ^