View Compilation Error

0_0_36423270_182.cpp: In function 'int_ main()':
0_0_36423270_182.cpp:39:42: error: 'in' was not declared in this scope
   for(int i=1;i<=n;++i) fa[i]=i,vis[i]=0,in[i]=0;
                                          ^
0_0_36423270_182.cpp:44:8: error: 'in' was not declared in this scope
      ++in[i],++in[j];
        ^
0_0_36423270_182.cpp:56:7: error: 'in' was not declared in this scope
    if(in[i]&1) ++cntt;
       ^
0_0_36423270_182.cpp:64:7: error: 'in' was not declared in this scope
    if(in[i]){
       ^
0_0_36423270_182.cpp:72:8: error: 'in' was not declared in this scope
    if((in[s]&1)){
        ^
0_0_36423270_182.cpp:79:6: error: 'in' was not declared in this scope
   if(in[s]){
      ^