Compilare: user.cpp: In function ‘int main()’: user.cpp:8:31: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] int n,i,j,sc=0,nr,k,mx=-(1<<31-1),a,b,ct=0; ^ user.cpp:48:15: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(mx==-(1<<31-1)) ^ user.cpp:8:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,sc=0,nr,k,mx=-(1<<31-1),a,b,ct=0; ^ user.cpp:8:20: warning: unused variable ‘nr’ [-Wunused-variable] int n,i,j,sc=0,nr,k,mx=-(1<<31-1),a,b,ct=0; ^ user.cpp:8:23: warning: unused variable ‘k’ [-Wunused-variable] int n,i,j,sc=0,nr,k,mx=-(1<<31-1),a,b,ct=0; ^ user.cpp:87:28: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<mx<<" "<<a<<" "<<b; ^ user.cpp:87:19: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<mx<<" "<<a<<" "<<b; ^