Compilare: user.c: In function ‘main’: user.c:11:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &m, &p ); ^ user.c:17:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &v[j] ); ^ user.c:30:12: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] if ( v[0] == nr ) ^