foo.cc: In function 'double find(std::vector<Point>&, int, int)':
foo.cc:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for (int i = 0; i < strip1.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~
foo.cc:58:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         for (int j = 0; j < strip2.size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务