Compilare: user.cpp: In function ‘int main()’: user.cpp:37:12: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] a[q]=-1; ^ user.cpp:38:12: warning: ‘w’ may be used uninitialized in this function [-Wmaybe-uninitialized] b[w]=-1; ^ user.cpp:93:27: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] nr2=nr2*10+y; ^ user.cpp:91:23: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] nr1=nr1*10+x; ^