I have found a really interesting problem http://codeforces.net/problemset/problem/97/E but i am not able to solve it in the required time complexity.
The problem is that given a graph with vertices n and edges m where n,m<=1e5 and
you are also given q queries where q<=1e5 and in each query 2 vertices are given u and v.
we have to find that whether there exists a simple path with odd length between u and v in each query.
Can someone please help me in solving the problem.