Compilare: main.cpp: In function 'int main()': main.cpp:15:44: warning: unused variable 'x' [-Wunused-variable] int n,ok=0,l,c,pasi=0,morcov=0,xf,yf,m,x,y,dir,tot=0,cnt1=0,cnt2=0,cnt=1,i,j; ^ main.cpp:15:46: warning: unused variable 'y' [-Wunused-variable] int n,ok=0,l,c,pasi=0,morcov=0,xf,yf,m,x,y,dir,tot=0,cnt1=0,cnt2=0,cnt=1,i,j; ^ main.cpp:119:20: warning: 'yf' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<xf<<" "<<yf<<endl; ^~ main.cpp:119:15: warning: 'xf' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<xf<<" "<<yf<<endl; ^~~