foo.cc: In function 'int solve(std::string&, std::string&)':
foo.cc:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
12 | while (i < s.size())
| ~~^~~~~~~~~~
foo.cc:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | if (j == t.size()) cnt++;
| ~~^~~~~~~~~~~
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