//#pragma GCC optimize("O3") #include <bits/stdc++.h> #include "supertrees.h" using namespace std; int construct(vector<vector<int>>nums) { vector<vector<int>>ans(nums.size()+1); for(int i=0;i<nums.size()-1;i++) { ans[i].push_back(i+1),ans[i+1].push_back(i); } build(ans); }

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:13:1: warning: no return statement in function returning non-void [-Wreturn-type]
   13 | }
      | ^