View Compilation Error

0_0_17371229_15754.cpp:10:21: error: expected primary-expression before ']' token
 vector<int >mp[maxn*];
                     ^
0_0_17371229_15754.cpp: In function 'void Tarjan(int)':
0_0_17371229_15754.cpp:27:19: error: 'mp' was not declared in this scope
     for(int i=0;i<mp[u].size();i++)
                   ^
0_0_17371229_15754.cpp: In function 'void Slove()':
0_0_17371229_15754.cpp:68:23: error: 'mp' was not declared in this scope
         for(int j=0;j<mp[i].size();j++)
                       ^
0_0_17371229_15754.cpp: In function 'int main()':
0_0_17371229_15754.cpp:139:30: error: 'mp' was not declared in this scope
         for(int i=1;i<=n;i++)mp[i].clear(),mp2[i].clear();
                              ^
0_0_17371229_15754.cpp:145:13: error: 'mp' was not declared in this scope
             mp[x].push_back(y);
             ^