Question — https://codeforces.me/problemset/problem/161/D
Submission — https://codeforces.me/contest/161/submission/278555376
IMO, it should pass the time constraints. Am I missing something?
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Buddy when you are calling dfs it's complexity is n*k*k... It should be n*k fir sol to work . Why are checking for all k values you only have to check for single k... Dp here is unnecessary