Compilare: user.cpp: In function ‘void Solve()’: user.cpp:58:27: warning: unused variable ‘mask’ [-Wunused-variable] int i, j, l, cnt, nr, mask,a , b, c; ^ user.cpp:58:32: warning: unused variable ‘a’ [-Wunused-variable] int i, j, l, cnt, nr, mask,a , b, c; ^ user.cpp:58:36: warning: unused variable ‘b’ [-Wunused-variable] int i, j, l, cnt, nr, mask,a , b, c; ^ user.cpp:58:39: warning: unused variable ‘c’ [-Wunused-variable] int i, j, l, cnt, nr, mask,a , b, c; ^