Fibonacci series is the series in which the each number is sum of its previous 2 numbers.
for eg: 0 , 1, 2, 3 (2+1), 5(3+2), 8(5+3)......Example of conversion of list to Dict and finding the Fibonacci number up to n..
Example.py
def fib(n1, n2):
fibnum = n1+n2
return fibnum
class test(object):
n1 = 0
n2 = 1
fiblist = []
count = 10
while(count>0):
fibnum = fib(n1, n2)
n1 = n2
n2 = fibnum
fiblist.append(fibnum)
count = count-1
print fiblist
lilen = len(fiblist)
print "length of list is",lilen
i=0
key_val = []
print "The ninth element in the list is ",fiblist[9]
# Now to convert this list in dict and adding the serial number as key and value from the Fibonacci list generated above/
# first we will create another list from 0 to length of fiblist and then will combine both lists.
while i <lilen:
key_val = key_val+[i]
i = i+1
#print key_val
print "The list items which will be used as key of dict items ",key_val
listtodict = zip(key_val, fiblist)
print "The dict created using fiblist and key_val is ", listtodict
print "the value of 9th key in the dict is", listtodict[9] _________________________________________________________
The output of the program is :
(On running this script by typing filename.py on cmd prompt or eclipse (python interpreter)
[1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
length of list is 10
The ninth element in the list is 89
The list items which will be used as key of dict items [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
The dict created using fiblist and key_val is [(0, 1), (1, 2), (2, 3), (3, 5), (4, 8), (5, 13), (6, 21), (7, 34), (8, 55), (9, 89)]
the value of 9th key in the dict is (9, 89)
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