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Finish Graph Theory and Routing Algorithms of Foundations chapter
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Study Crowdsourcing concept and Crowdsourcing Data, finish writing of Crowdsourcing Data
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-enable scan 2D code for choosing starting location
-ask the user to inform the completion of an instruction
-the user choose destination based on a destination list -
-enable enter start and destination location manually
-step detection and counting
-giving the next instruction automatically -
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