Compilare: user.c: In function ‘main’: user.c:17:10: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d%d%d", &punct, &n, &k, &D ) ; ^ user.c:20:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &l, &c ) ; ^ user.c:34:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &m ) ; ^ user.c:37:14: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &x, &y ) ; ^ user.c:15:38: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] int n, i, D, k, punct, l, c, x, y, j, m, d ; ^