Compilare: user.cpp: In function ‘int main()’: user.cpp:677:45: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x, y; read(x, y); x -= 1; y -= 1; ^ user.cpp:677:37: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x, y; read(x, y); x -= 1; y -= 1; ^ user.cpp:670:46: warning: ‘parent’ may be used uninitialized in this function [-Wmaybe-uninitialized] int parent; read(parent); parent -= 1; ^