Closest Pair of Sensor Stations

PandasMediumMid level~10 min

Problem

A `SensorStation` DataFrame holds the grid coordinates of unique stations as `east` and `north`. Report the shortest straight-line (Euclidean) distance between any two distinct stations, rounded to 2 decimals, in a single column `nearest`.

Input data

Example rows — the live problem includes the full dataset.

sensorstation

east	north
2	3
5	7
2	4
8	1

Expected output

Your answer should return 1 row with the columns nearest.

Starter code (Pandas (Python))

import pandas as pd

def closest_stations(sensorstation: pd.DataFrame) -> pd.DataFrame:
    # Your code here
    return sensorstation

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Solution & explanation

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