Compilare: user.c: In function ‘main’: user.c:44:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &k); ^ user.c:49:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^ user.c:60:7: warning: ‘lin’ may be used uninitialized in this function [-Wmaybe-uninitialized] scad(&d[lin][0]); ^