foo.cc: In function 'int main()':
foo.cc:8:26: warning: spurious trailing '%' in format [-Wformat=]
  scanf("%d,%d,%",&x,&y,&z);
                          ^
foo.cc:8:26: warning: too many arguments for format [-Wformat-extra-args]
foo.cc:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d,%d,%",&x,&y,&z);
  ~~~~~^~~~~~~~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务