foo.cc: In function 'int getMinSwaps(std::vector<int>&)':
foo.cc:16:23: 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 < sortedNums.size(); i++)mp[sortedNums[i]] = i ;//记录下标索引
      |                     ~~^~~~~~~~~~~~~~~~~~~
foo.cc:19:23: 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 < nums.size();i++)
      |                     ~~^~~~~~~~~~~~~

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