Compilare: user.c: In function ‘main’: user.c:78:7: warning: unused variable ‘x’ [-Wunused-variable] int x; ^ user.c:51:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &n, &k, &s); ^ user.c:54:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &h[i]); ^