foo.cc: In function 'int main()':
foo.cc:33:15: error: too few arguments to function 'void yueseph(int, int, int*, int)'
  yueseph(n,k,a);
               ^
foo.cc:9:6: note: declared here
 void yueseph(int n,int k, int out[],int ans)
      ^~~~~~~

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。