Eroare de compilare: user.c: In function ‘PrimeNumbersSieve5’: user.c:10:9: error: ‘list’ undeclared (first use in this function) if((list[i >> 3] & (1 << (i & 7))) == 0){ ^ user.c:10:9: note: each undeclared identifier is reported only once for each function it appears in user.c:21:1: warning: return makes integer from pointer without a cast [enabled by default] return primes; ^ user.c: In function ‘main’: user.c:34:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%d", &T); ^ user.c:38:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%d", &N); ^ user.c:39:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%d", &K); ^