Compilare: user.cpp: In function ‘int main()’: user.cpp:18:22: warning: unused variable ‘s2’ [-Wunused-variable] long long m, s1, s2, m1, m2; ^ user.cpp:43:34: warning: ‘m2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i != m1 && i != m1+1 && i != m2 && i != m2+1) { ^ user.cpp:43:31: warning: ‘m1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i != m1 && i != m1+1 && i != m2 && i != m2+1) { ^