/in/foo.cc: In function 'void search_DFS(std::__cxx11::string)':
/in/foo.cc:32:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(ans&&((j+xtzm)==x.size()))
              ~~~~~~~~^~~~~~~~~~
/in/foo.cc:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(ans&&((j+xtzm)!=x.size()))
              ~~~~~~~~^~~~~~~~~~
/in/foo.cc:49:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(!ans&&sum.size()>maxn)
           ~~~~~~~~~~^~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:55:6: warning: unused variable 'Zoe' [-Wunused-variable]
  int Zoe,Forever,xzy,cxlf,YBB;
      ^~~
/in/foo.cc:55:10: warning: unused variable 'Forever' [-Wunused-variable]
  int Zoe,Forever,xzy,cxlf,YBB;
          ^~~~~~~
/in/foo.cc:55:18: warning: unused variable 'xzy' [-Wunused-variable]
  int Zoe,Forever,xzy,cxlf,YBB;
                  ^~~
/in/foo.cc:55:22: warning: unused variable 'cxlf' [-Wunused-variable]
  int Zoe,Forever,xzy,cxlf,YBB;
                      ^~~~
/in/foo.cc:55:27: warning: unused variable 'YBB' [-Wunused-variable]
  int Zoe,Forever,xzy,cxlf,YBB;
                           ^~~