anshu2002's blog

By anshu2002, history, 4 months ago, In English
// there is a unrooted unweighted tree with n nodes numbered from 1 to n . You have to travel from 1 to n via some special nodes,
// so find the length of shortest path from 1 to n
// you can visit any node any number of times
// you have to visit special nodes atleast once
vector<int>edges = {{1,2},{1,3},{3,4},{3,5}};
vector<int>special_nodes = {2,4};
// ans : 6 (1->2->1->3->4->3->5)
 
 
 
 
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