SPOJ-ROADS Dynamic programming problem

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I’m trying to solve SPOJ-ROADS problem. Although i’m memorising the states correctly still, i’m getting unexpected TLE.
Plz help…

Code: BpFpHQ - Online C++0x Compiler & Debugging Tool - Ideone.com

Problem Link : SPOJ.com - Problem ROADS

Thanks in advance!

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@amulyagaur111
I also faced the same problem, so try using Dijkstra’s algorithm using a priority queue.
Link to my solution : Roads.cpp
Any doubts are welcome.
Thanks