应该怎么对待这样的警告?
foo.cc: In function 'int main()':
foo.cc:30:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
30 | while (q.size() >= v) {