View Compilation Error

0_0_37647144_6450.cpp:7:17: error: conflicting declaration 'int v'
 int n, m, t, u, v;
                 ^
0_0_37647144_6450.cpp:6:12: note: previous declaration as 'std::vector<int> v [4005]'
 vector<int>v[maxn];
            ^
0_0_37647144_6450.cpp: In function 'int main()':
0_0_37647144_6450.cpp:92:10: error: invalid types 'int [4005][std::vector<int> [4005]]' for array subscript
    g[u][v] = 0;
          ^