could any one pls say how to solve this problems....and also say some prerequisites to solve this problem....
https://www.codechef.com/COFU2015/problems/LINGRP
thanks in advance...
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could any one pls say how to solve this problems....and also say some prerequisites to solve this problem....
https://www.codechef.com/COFU2015/problems/LINGRP
thanks in advance...
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My friend it's a graph problem, I think it needs DFS or BFS
Read about Euler Path
Euler tour.