foo.cc: In function 'void solve()':
foo.cc:26:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for(int i=0;i<a.length();i++){
| ~^~~~~~~~~~~
foo.cc:31:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
31 | for(int i=0;i<b.length();i++){
| ~^~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
43 | scanf("%d",&t);
| ~~~~~^~~~~~~~~
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