View Compilation Error

0_0_30484892_627.cpp: In function 'void solve()':
0_0_30484892_627.cpp:78:21: error: no matching function for call to 'zhu_liu<int>::init(int&)'
   solver.init(sum[n]);
                     ^
0_0_30484892_627.cpp:78:21: note: candidate is:
0_0_30484892_627.cpp:18:7: note: void zhu_liu<T>::init() [with T = int]
  void init(){E.clear();}
       ^
0_0_30484892_627.cpp:18:7: note:   candidate expects 0 arguments, 1 provided