Anna.cpp: In function 'void Anna(int, int, std::vector<int>, std::vector<int>)':
Anna.cpp:23:16: error: 'abs' was not declared in this scope
23 | f += ce * ((abs(R[k] - r) + abs(C[k] - c)) % 3);
| ^~~
Anna.cpp: At global scope:
Anna.cpp:6:5: warning: 'int {anonymous}::FunctionExample(int, int, int)' defined but not used [-Wunused-function]
6 | int FunctionExample(int r, int c, int K) {
| ^~~~~~~~~~~~~~~
Bruno.cpp:6:5: warning: '{anonymous}::variable_example' defined but not used [-Wunused-variable]
6 | int variable_example = 1;
| ^~~~~~~~~~~~~~~~