View Compilation Error

0_0_39465052_12859.cpp: In member function 'void Segment_Tree::solve(const int&, const int&, const int&)':
0_0_39465052_12859.cpp:53:55: error: return-statement with a value, in function returning 'void' [-fpermissive]
   53 |                         if (l==r) return tag[getfa(1)]+=l;
      |                                          ~~~~~~~~~~~~~^~~