Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:46:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (z[i] + r >= h) Union(n + 1, i);
~~~~~~~~~^~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:46:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (z[i] + r >= h) Union(n + 1, i);
~~~~~~~~~^~~~
