https://www.hackerrank.com/challenges/xml2-find-the-maximum-depth
Problem
You are given a valid XML document, and you have to print the maximum level of nesting in it. Take the depth of the root as 0.
Input Format
The first line contains N, the number of lines in the XML document. The next N lines follow containing the XML document.
Output Format
Output a single line, the integer value of the maximum level of nesting in the XML document.
Sample Input 0
6
<feed xml:lang='en'>
<title>HackerRank</title>
<subtitle lang='en'>Programming challenges</subtitle>
<link rel='alternate' type='text/html' href='http://hackerrank.com/'/>
<updated>2013-12-25T12:00:00</updated>
</feed>
Sample Output 0
1