I need some algorithm to find the paths between any 2 nodes in a graph and also the shortest path. The nodes denote people, the links denote relationship strength. I need the shgortest way to reach one person to another. also, the relastionship links are weighted by some strength value. I have a network of 20000 relastionhip links and a thousand nodes. Can any one give me reasonable fast / efficient algorithm / code solving this problem of finding the paths ( all paths or k smallest paths ) and the shortest path path between 2 points ?
## Deliverables
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## Platform
Any, C#, C, C++ preferred