Consider the following code segments for mapping first names to the number of last names that go with it.
A)
def mapNameToNumberLastNames(data):
countmap = {}
for [first, last] in data:
countmap[first] = 1
countmap[first] += 1
return countmap
B)
def mapNameToNumberLastNames(data):
countmap = {}
for [first, last] in data:
countmap[first] += 1
return countmap
C)
def mapNameToNumberLastNames(data):
countmap = {}
for [first, last] in data:
if first in countmap:
countmap[first] = countmap[first] + 1
else:
countmap[first] = 1
return countmap
D)
def mapNameToNumberLastNames(data):
countmap = {}
for [first, last] in data:
if first not in countmap:
countmap[first] = 0
countmap[first] += 1
return countmap
