View Compilation Error

0_0_38796370_23403.cpp: In function 'void solve()':
0_0_38796370_23403.cpp:45:27: error: 'son' was not declared in this scope; did you mean 'sin'?
   45 |     for(int i=0;i<=n;i++) son[i].clear(),hs[i]=0,dep[i]=0;
      |                           ^~~
      |                           sin