View Compilation Error

0_0_37842113_30432.cpp: In function 'int main()':
0_0_37842113_30432.cpp:33:31: error: invalid operands of types 'void' and 'int' to binary 'operator=='
    while(q.size() && q.pop()==it)
                               ^
0_0_37842113_30432.cpp:41:13: error: 'num' was not declared in this scope
     int t=k-num%k;
             ^