Compilare: user.c: In function ‘get_seq’: user.c:27:29: warning: value computed is not used [-Wunused-value] (!M[k] || S[M[k]] > S[i]) && (M[k] = i); ^ user.c:28:15: warning: value computed is not used [-Wunused-value] k > max_len && (max_len = k); ^ user.c: In function ‘main’: user.c:53:73: warning: value computed is not used [-Wunused-value] l_max[i] + r_max[N - i + 1] > max_len && l_max[i] && r_max[N - i + 1] && (max_len = l_max[i] + r_max[N - i + 1]); ^ user.c:35:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.in", "r", stdin); ^ user.c:36:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.out", "w", stdout); ^ user.c:42:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.c:44:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%f", &A[i]); ^