Compilare: main.cpp: In function 'int main()': main.cpp:33:9: warning: unused variable 'i' [-Wunused-variable] int i,j,c,cntcam=0,ariemax=0,xs,ys,xf,yf; ^ main.cpp:33:11: warning: unused variable 'j' [-Wunused-variable] int i,j,c,cntcam=0,ariemax=0,xs,ys,xf,yf; ^ main.cpp:74:44: warning: 'yf' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<xs<<" "<<ys<<" " <<xf<<" "<<yf; ^ main.cpp:74:37: warning: 'xf' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<xs<<" "<<ys<<" " <<xf<<" "<<yf; ^~~ main.cpp:74:27: warning: 'ys' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<xs<<" "<<ys<<" " <<xf<<" "<<yf; ^~~ main.cpp:74:18: warning: 'xs' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<xs<<" "<<ys<<" " <<xf<<" "<<yf; ^~~