foo.cc: In function 'int main()':
foo.cc:9:15: 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=1;i<s.size() ;i++)
      |              ~^~~~~~~~~
foo.cc:23:12: warning: iteration 100000 invokes undefined behavior [-Waggressive-loop-optimizations]
   23 |   if(a[1][i]>m)
      |      ~~~~~~^
foo.cc:21:15: note: within this loop
   21 |  for(int i=0;i<=100000;i++)
      |              ~^~~~~~~~
foo.cc:31:12: warning: iteration 100000 invokes undefined behavior [-Waggressive-loop-optimizations]
   31 |   if(a[1][i]==m)
      |      ~~~~~~^
foo.cc:29:15: note: within this loop
   29 |  for(int i=0;i<=100000;i++)
      |              ~^~~~~~~~

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