Compilare: user.c:7:13: warning: ‘subm’ defined but not used [-Wunused-function] static void subm(int n, int l) ^ user.c:23:13: warning: ‘subm_bit’ defined but not used [-Wunused-function] static void subm_bit(int n) ^ user.c: In function ‘main’: user.c:58:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("submultimi.in", "r", stdin); ^ user.c:59:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("submultimi.out", "w", stdout); ^ user.c:61:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^