foo.cc: In function ‘void work(int)’:
foo.cc:14:18: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   14 |     for(int j=0;j<b[a[i].l].size();j++)
      |                 ~^~~~~~~~~~~~~~~~~
foo.cc:15:22: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   15 |         for(int k=0;k<b[a[i].r].size();k++)
      |                     ~^~~~~~~~~~~~~~~~~
foo.cc: In function ‘int main()’:
foo.cc:33:22: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   33 |         for(int j=0;j<b[a[i].l].size();j++)
      |                     ~^~~~~~~~~~~~~~~~~

正在同步测试数据，请稍后