foo.cc: In function 'int main()':
foo.cc:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i=0;i<a.size();i++)
      |                 ~^~~~~~~~~
foo.cc:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i=0;i<b.size();i++)
      |                 ~^~~~~~~~~

正在同步测试数据，请稍后
Found 5 testcases.
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