Compilare: user.c: In function ‘main’: user.c:59:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.c:63:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^ user.c:77:10: warning: ‘rezlen’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out, "%d %u", rezlen - 1, reznr); ^ user.c:72:13: warning: ‘reznr’ may be used uninitialized in this function [-Wmaybe-uninitialized] reznr += rnr; ^