View Compilation Error

0_0_35533731_1470.cpp: In function 'int main()':
0_0_35533731_1470.cpp:42:20: error: 'hjt' was not declared in this scope
             update(hjt[i], hjt[i - 1], 1, num, a[i], 1);
                    ^
0_0_35533731_1470.cpp:47:29: error: 'hjt' was not declared in this scope
             cout << v[query(hjt[l - 1], hjt[r], 1, num, k) - 1] << endl;
                             ^