Compilare: user.cpp: In function ‘int main()’: user.cpp:51:28: warning: unused variable ‘ttt’ [-Wunused-variable] int i, j,x,y,n, m,maxim=0,ttt=0; ^ user.cpp:127:21: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << x << " " << y << " " << maxim; ^ user.cpp:127:9: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << x << " " << y << " " << maxim; ^