View Compilation Error

0_0_36514141_28633.cpp: In lambda function:
0_0_36514141_28633.cpp:27:121: error: no match for call to '(std::function<long long int(int)>) (long long int, long long int)'
 if(ans)return ans;ans=max(getdp1(parent[node]-max(getdp1(node)-2*pw[node],0ll),getdp3(parent[node])+getdp2(parent[node]));return ans;};
                                                                                                                         ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:70:0,
                 from 0_0_36514141_28633.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2142:11: note: candidate is:
     class function<_Res(_ArgTypes...)>
           ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2434:5: note: _Res std::function<_Res(_ArgTypes ...)>::operator()(_ArgTypes ...) const [with _Res = long long int; _ArgTypes = {int}]
     function<_Res(_ArgTypes...)>::
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2434:5: note:   candidate expects 1 argument, 2 provided