foo.cc: In function 'int main()':
foo.cc:8:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for(int i = 0;i < s.size();i++)
      |                   ~~^~~~~~~~~~
foo.cc:14:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i = 1;i < s.size();i++)
      |                   ~~^~~~~~~~~~
foo.cc:13:23: warning: '*dp[0][<unknown>]' may be used uninitialized [-Wmaybe-uninitialized]
   13 |     dp[0][(s[0]-'0')%9]++;
      |     ~~~~~~~~~~~~~~~~~~^

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