foo.cc: In function ‘int main()’:
foo.cc:23:15: warning: ‘root’ may be used uninitialized [-Wmaybe-uninitialized]
   23 |         cout<<root<<endl<<max_kid_stick<<endl;
      |               ^~~~
foo.cc:9:46: note: ‘root’ was declared here
    9 |         int n,m,max_kid_size=0,max_kid_stick,root;
      |                                              ^~~~
foo.cc:23:27: warning: ‘max_kid_stick’ may be used uninitialized [-Wmaybe-uninitialized]
   23 |         cout<<root<<endl<<max_kid_stick<<endl;
      |                           ^~~~~~~~~~~~~
foo.cc:9:32: note: ‘max_kid_stick’ was declared here
    9 |         int n,m,max_kid_size=0,max_kid_stick,root;
      |                                ^~~~~~~~~~~~~