View Compilation Error

0_0_39449534_31321.cpp: In function 'int main()':
0_0_39449534_31321.cpp:22:48: error: void value not ignored as it ought to be
   22 |                                         d=k.pop();
      |                                           ~~~~~^~
0_0_39449534_31321.cpp:35:48: error: void value not ignored as it ought to be
   35 |                                         e=j.pop();
      |                                           ~~~~~^~