Compilare: user.cpp: In function ‘int main()’: user.cpp:31:9: warning: unused variable ‘a’ [-Wunused-variable] int i, a, b, nr = 0, j, maxs = 0, maxi, maxj; ^ user.cpp:31:12: warning: unused variable ‘b’ [-Wunused-variable] int i, a, b, nr = 0, j, maxs = 0, maxi, maxj; ^ user.cpp:61:3: warning: ‘maxj’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (maxj&(1 << i)) ^ user.cpp:55:3: warning: ‘maxi’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (maxi&(1 << i)) ^