View Compilation Error

0_0_33555794_29891.cpp:35:8: error: 'MAX_N' was not declared in this scope
 int id[MAX_N];
        ^
0_0_33555794_29891.cpp: In function 'void dfs(int, int, int, int, int)':
0_0_33555794_29891.cpp:43:22: error: 'id' was not declared in this scope
     for(int i=0;i<tp[id[cnt]].size();i++){
                      ^
0_0_33555794_29891.cpp: In function 'void solve()':
0_0_33555794_29891.cpp:61:13: error: 'id' was not declared in this scope
             id[tot++]=i;
             ^