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", &n); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &v[i]); ^ user.c:19:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x[i]); ^ user.c:52:44: warning: ‘va1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(max-v[i]<val2 && l[v[i]]==0 && v[i]!=va1) { ^