foo.cc: In function 'int main()':
foo.cc:31:79: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
  for(int i = 1; i < n; i++) scanf("%d%d%d", &edge[i].x, &edge[i].y, &edge[i].z);
                                                                     ~~~~~~~~~~^
foo.cc:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
foo.cc:31:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1; i < n; i++) scanf("%d%d%d", &edge[i].x, &edge[i].y, &edge[i].z);
                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。