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In a city there are N houses, each of which is in need of a water supply. It costs Wi dollars to build a well at house i, and it costs Cij to build a pipe in between houses i and j. A house can receive water if either there is a well built there or there is some path of pipes to a house with a well. Give an algorithm to find the minimum amount of money needed to supply every house with water.

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In a city there are N houses, each of which is in need of a water supply. It costs Wi dollars to bui...

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