Compilare: user.cpp: In function ‘int main()’: user.cpp:133:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(C[i] == 0 && a.size() == b.size() && n - i == a.size()) ^ user.cpp:219:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(n - i == b.size()) B[i] = 1; ^ user.cpp:235:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(n - i == a.size()) A[i] = 1; ^ user.cpp:316:25: warning: statement has no effect [-Wunused-value] print(i); ^ user.cpp:317:28: warning: statement has no effect [-Wunused-value] print(A[i]); ^ user.cpp:318:28: warning: statement has no effect [-Wunused-value] print(B[i]); ^ user.cpp:319:34: warning: statement has no effect [-Wunused-value] print(has[i + 1]); ^ user.cpp:320:28: warning: statement has no effect [-Wunused-value] print(C[i]); ^