View Compilation Error

0_0_36055199_7865.cpp: In function 'int main()':
0_0_36055199_7865.cpp:63:3: error: 'q' was not declared in this scope
   q[i].id = i;
   ^
0_0_36055199_7865.cpp:65:7: error: 'q' was not declared in this scope
  sort(q + 1,q + t + 1, cmp);
       ^