foo.cc: In function 'int Search(std::vector<int>&)':
foo.cc:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for(int i=1;i<v.size();i++)
      |                     ~^~~~~~~~~
foo.cc: In function 'int GetLen(std::vector<int>&, int)':
foo.cc:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=0;i<v.size();i++)
      |                     ~^~~~~~~~~
foo.cc: In function 'void BubbleSort(std::vector<int>&)':
foo.cc:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |         for(int i=0;i<v.size();i++)
      |                     ~^~~~~~~~~
foo.cc:49:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |                 for(int j=0;j<v.size()-i-1;j++)
      |                             ~^~~~~~~~~~~~~

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