Compilare: user.cpp: In function ‘int main()’: user.cpp:47:36: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(lev[rmq[i-1][j+(1<<i-1)]]<lev[rmq[i][j]]) ^ user.cpp:48:43: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[i][j]=rmq[i-1][j+(1<<i-1)]; ^ user.cpp:56:23: warning: unused variable ‘a’ [-Wunused-variable] int aux=a,a=b,b=aux; ^ user.cpp:56:27: warning: unused variable ‘b’ [-Wunused-variable] int aux=a,a=b,b=aux; ^