Compilare: user.c: In function ‘get_seq’: user.c:24:35: warning: value computed is not used [-Wunused-value] (!M[k] || S[M[k]] > S[i]) && (M[k] = i); ^ user.c:25:21: warning: value computed is not used [-Wunused-value] k > max_len && (max_len = k); ^ user.c: In function ‘main’: user.c:50:83: warning: value computed is not used [-Wunused-value] l_max[i] > 1 && r_max[N - i] > 1 && ( l_max[i] + r_max[N - i] > max_len ) && (max_len = l_max[i] + r_max[N - i]); ^ user.c:32:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.in", "r", stdin); ^ user.c:33:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.out", "w", stdout); ^ user.c:39:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.c:41:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%f", &A[i]); ^