#include "split.h" #include <bits/stdc++.h> using namespace std; #define pb push_back const int mxN=1e5; vector<int> g[mxN], euler; bool was[mxN]; void dfs(int u) { assert(u>=0&&u<n); was[u]=true; euler.pb(u); for(int i:g[u]) if(!was[i]) dfs(i); } vector<int> find_split(int n, int a, int b, int c, vector<int> u, vector<int> v) { int m=(int)u.size(); for(int i=0; i<m; ++i) g[u[i]].pb(v[i]), g[v[i]].pb(u[i]); int root; for(int i=0; i<n; ++i) if((int)g[i].size()==1) root=i; dfs(root); vector<int> ans(n); for(int i:euler) { if(a>0) ans[i]=1, --a; else if(b>0) ans[i]=2, --b; else ans[i]=3; } return ans; } /*int main() { ios::sync_with_stdio(false); cin.tie(0); return 0; }*/

In file included from /usr/include/c++/9/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:33,
                 from split.cpp:2:
split.cpp: In function 'void dfs(int)':
split.cpp:12:17: error: 'n' was not declared in this scope
   12 |  assert(u>=0&&u<n);
      |                 ^