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Compress
graph to rn=O*(n/e2) edges
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Find s-t max-flow in compressed graph
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Gives s-t mincut in compressed
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So approx. s-t mincut in original
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Assorted
runtimes:
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[GT] O(mn) becomes O*(n2/e2)
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[FF] O(mv) becomes O(nv/e2)
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[GR] O(m3/2) become O(n3/2/e3)
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