minerals.cpp: In function 'void find_out(std::vector<int>&, std::vector<int>&)':
minerals.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int i=0;i<x.size();i++){
      |                 ~^~~~~~~~~
minerals.cpp:13:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         if(i<x.size()/2) x1.push_back(x[i]);
      |            ~^~~~~~~~~~~
minerals.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i=0;i<x.size()/2;i++){
      |                 ~^~~~~~~~~~~
minerals.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i=0;i<y.size();i++){
      |                 ~^~~~~~~~~
minerals.cpp:25:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     for(int i=0;i<x.size()/2;i++){
      |                 ~^~~~~~~~~~~