foo.cc: In function 'int main()':
foo.cc:33:19: warning: unused variable 'min' [-Wunused-variable]
   33 |         int xa,ya,min;
      |                   ^~~
foo.cc:42:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seat>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for (int i=0;i<arr.size();i++){
      |                  ~^~~~~~~~~~~
foo.cc:31:9: warning: unused variable 'ans1' [-Wunused-variable]
   31 |     int ans1=0,ans2=0;
      |         ^~~~
foo.cc:31:16: warning: unused variable 'ans2' [-Wunused-variable]
   31 |     int ans1=0,ans2=0;
      |                ^~~~

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