foo.cc: In function 'void spfa1()':
foo.cc:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         for(int i=0; i<g1[fst].size(); i++)
      |                      ~^~~~~~~~~~~~~~~
foo.cc: In function 'void spfa2()':
foo.cc:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for(int i=0; i<g1[fst].size(); i++)
      |                      ~^~~~~~~~~~~~~~~

正在同步测试数据，请稍后
Found 6 testcases.
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