foo.cc: In function 'int find_kth_fa(int, int)':
foo.cc:37:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   37 |  if(k>d[x])return 0;if(k==0)return x;
      |  ^~
foo.cc:37:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   37 |  if(k>d[x])return 0;if(k==0)return x;
      |                     ^~
foo.cc: In function 'int main()':
foo.cc:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   46 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
foo.cc:48:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   48 |   int x,y;scanf("%d%d",&x,&y);
      |           ~~~~~^~~~~~~~~~~~~~
foo.cc:64:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   64 |  int q;scanf("%d",&q);
      |        ~~~~~^~~~~~~~~
foo.cc:67:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   67 |   int x,k;scanf("%d%d",&x,&k);
      |           ~~~~~^~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务