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0_0_39173040_7060.cpp: In function 'std::vector<int> fibonacci(int)':
0_0_39173040_7060.cpp:54:22: error: cannot bind non-const lvalue reference of type 'std::vector<int>&' to an rvalue of type 'std::vector<int>'
   54 |         fib = add(add(fib, temp), add(temp, temp));
      |                   ~~~^~~~~~~~~~~
0_0_39173040_7060.cpp:7:30: note:   initializing argument 1 of 'std::vector<int> add(std::vector<int>&, std::vector<int>&)'
    7 | vector<int> add(vector<int>& num1, vector<int>& num2) {
      |                 ~~~~~~~~~~~~~^~~~