# A set of constants, each representing a list index for station information.ID = 0NAME = 1LATITUDE%3DLONGITUDE3САРАСITY4BIKES_AVAILABLE%3DDOCKS_AVAILABLE%3DNO_KIOSK"SMART'# For use in the get_lat_lon_distance helper functionEARTH_RADIUS= 6371# SAMPLE DATA TO USE IN DOCSTRING EXAMPLESSAMPLE_STATIONS[7090, 'Danforth Ave / Lamb Ave',43.681991, -79.329455, 15, 4, 10],[7486, 'Gerrard St E / Ted Reeve Dr',43.684261, -79.299332, 24, 5, 19],[7571, 'Highfield Rd / Gerrard St E - SMART',43.671685, -79.325176, 19, 14, 5]]HANDOUT_STATIONS[7000, 'Ft. York / Capreol Crt.',43.639832, -79.395954, 31, 20, 11],[7001, 'Lower Jarvis St SMART / The Esplanade',43.647992, -79.370907, 15, 5, 10]] def upgrade_stations(threshold: int, num_bikes: int,stations: List["Station"]) -> int:'""Modify each station in stations that has a capacity that is less thanthreshold by adding num_bikes to the capacity and bikes available counts.Modify each station at most once.Return the total number of bikes that were added to the bike share network.Precondition: num_bikes >= 0>> handout_copy =>> upgrade_stations(25, 5, handout_copy)[HANDOUT_STATIONS[Ø][:], HANDOUT_STATIONS[1][:]]>>> handout_copy[0]HANDOUT_STATIONS[0]==True>>> handout_copy[1][7001, 'Lower Jarvis St SMART / The Esplanade', \43.647992, -79.370907, 20, 10, 10]True

# A set of constants, each representing a list index for station information. ID = 0 NAME = 1 LATITUDE = LONGITUDE = 3 САРАCITY 3D 4 2 BIKES_AVAILABLE = 5 DOCKS_AVAILABLE 6. NO_KIOSK = 'SMART' # For use in the get_lat_lon_distance helper function EARTH_RADIUS = 6371 # SAMPLE DATA TO USE IN DOCSTRING EXAMPLES SAMPLE_STATIONS %3D [7090, 'Danforth Ave / Lamb Ave', 43.681991, -79.329455, 15, 4, 10], [7486, 'Gerrard St E / Ted Reeve Dr', 43.684261, -79.299332, 24, 5, 19], [7571, 'Highfield Rd / Gerrard St E 43.671685, -79.325176, 19, 14, 5]] SMART', HANDOUT_STATIONS = [ [7000, 'Ft. York / Capreol Crt.', 43.639832, -79.395954, 31, 20, 11], [7001, 'Lower Jarvis St SMART / The Esplanade', 43.647992, -79.370907, 15, 5, 10]] %3D

# A set of constants, each representing a list index for station information. ID = 0 NAME = 1 LATITUDE = LONGITUDE = 3 САРАCITY 3D 4 2 BIKES_AVAILABLE = 5 DOCKS_AVAILABLE 6. NO_KIOSK = 'SMART' # For use in the get_lat_lon_distance helper function EARTH_RADIUS = 6371 # SAMPLE DATA TO USE IN DOCSTRING EXAMPLES SAMPLE_STATIONS %3D [7090, 'Danforth Ave / Lamb Ave', 43.681991, -79.329455, 15, 4, 10], [7486, 'Gerrard St E / Ted Reeve Dr', 43.684261, -79.299332, 24, 5, 19], [7571, 'Highfield Rd / Gerrard St E 43.671685, -79.325176, 19, 14, 5]] SMART', HANDOUT_STATIONS = [ [7000, 'Ft. York / Capreol Crt.', 43.639832, -79.395954, 31, 20, 11], [7001, 'Lower Jarvis St SMART / The Esplanade', 43.647992, -79.370907, 15, 5, 10]] %3D

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Please convert to 3rd Normal Form
def return_bike(station_id: int, stations: List["Station"]) -> bool: """Update the available bike count and the docks available count for station in stations with id station_id as if a single bike was added, making an additional dock unavailable. Return True if and only if the return was successful. Precondition: station_id will appear in stations. >>> available_dock_station 43.681991, -79.329455, 15, 4, 10] >>> station_id >> original_bikes_available >> original_docks_available >> return_bike(station_id, [available_dock_station]) [7090, 'Danforth Ave / Lamb Ave', \ available_dock_station[ID] available_dock_station[BIKES_AVAILABLE] available_dock_station[DOCKS_AVAILABLE] True >> original_bikes_available + 1 available_dock_station[BIKES_AVAILABLE] == True >>> original_docks_available 1 available_dock_station[D0CKS_AVAILABLE] == True >>> no_dock_station 43.681991, -79.329455, 15, 15, 0] >>> station_id = no_dock_station[ID] >>> original_bikes_available = no_dock_station[BIKES_AVAILABLE] >>…
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