wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:37:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for (int i = 0; i < a.size(); i++)
| ~~^~~~~~~~~~
wiring.cpp:44:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | for (i = 0; i < a.size(); i++)
| ~~^~~~~~~~~~
wiring.cpp:52:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | for (; i < a.size(); i++)
| ~~^~~~~~~~~~
wiring.cpp:50:6: warning: variable 'sm' set but not used [-Wunused-but-set-variable]
50 | lli sm = 0;
| ^~