Population limit: 20792
Note: Population limit will change at random intervals. So please make sure answer is computed for the correct population limit before submitting.
import json
from math import pi, sin, cos, sqrt, asin
def find_dist(latlng_1, latlng_2):
'''
This function calculate distanse in km between two point on Earth
whose coordinates are passed as two lists and returns rounded distanse
'''
lat1, lon1 = latlng_1[0]*pi/180, latlng_1[1]*pi/180
lat2, lon2 = latlng_2[0]*pi/180, latlng_2[1]*pi/180
d = 2*6371*asin(sqrt(sin((lat2-lat1)/2)*2 + cos(lat1)*cos(lat2)*sin((lon2-lon1)/2)*2))
return round(d,2)
file = "countriesV2.json"
limit = 11750
with open(file, 'r') as f:
contries = json.load(f)
first_20 = {}
for contry in contries:
if contry['population'] >= limit:
first_20[contry['alpha3Code']] = contry['latlng']
if len(first_20) == 20:
break
total_dist = 0
keys = list(first_20.keys())
for i in range(len(keys)-1):
for j in range(len(keys[i+1:])):
total_dist += find_dist(first_20[keys[i]], first_20[keys[j]])
total_dist = round(total_dist, 2)
print(total_)
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