foo.cc: In function 'int main()':
foo.cc:83:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |         for(int i=0;i<roomsizes.size();i++)
      |                     ~^~~~~~~~~~~~~~~~~
foo.cc:70:13: warning: unused variable 'x' [-Wunused-variable]
   70 |         int x;
      |             ^

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