Consider the following Python code:
def countchildren(l, i):
Some code
Given lists
if i > 2:
return 1
ans = 1
for i in l.keys():
ans = ans + countchildren(l,i)
return ans
Example usage
l = dict()
l[1] = [2, 3]
l[2] = [3, 4, 5]
l[3] = [6, 7, 8]
result = countchildren(l,1)
print(result)