answer.code: In function ‘long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)’:
answer.code:7:5: error: ‘ll’ was not declared in this scope
    7 |     ll jum=0;
      |     ^~
answer.code:9:9: error: ‘jum’ was not declared in this scope
    9 |         jum+=W[i];
      |         ^~~
answer.code:12:10: error: ‘jum’ was not declared in this scope
   12 |   return jum;
      |          ^~~