View Compilation Error

0_0_33802521_19084.cpp: In function 'int check(int, int, int)':
0_0_33802521_19084.cpp:38:24: error: 'G' was not declared in this scope
     return upper_bound(G[x].begin(), G[x].end(), r) - lower_bound(G[x].begin(), G[x].end(), l);
                        ^
0_0_33802521_19084.cpp: In function 'int main()':
0_0_33802521_19084.cpp:67:13: error: 'vd' was not declared in this scope
             vd.clear();
             ^