Compilare: user.c: In function ‘main’: user.c:7:9: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int a, b, n, k, sc, smax, i, imax, j; ^ user.c:8:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &b); ^ user.c:16:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &b); ^