create 2d list dictionary
d = {}
for elem in l:
if elem[1] in d:
d[elem[1]].append(elem[0])
else:
d[elem[1]] = [elem[0]]create 2d list dictionary
d = {}
for elem in l:
if elem[1] in d:
d[elem[1]].append(elem[0])
else:
d[elem[1]] = [elem[0]]Copyright © 2021 Codeinu
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