View Compilation Error

0_0_37892417_5713.cpp: In function 'int main()':
0_0_37892417_5713.cpp:36:38: error: 'cnt' was not declared in this scope
    while (q.size() && q.top() == it) cnt ++, q.pop(); 
                                      ^
0_0_37892417_5713.cpp:37:11: error: 'cnt' was not declared in this scope
    res += cnt / k;
           ^