What is the quickest and cleanest way to convert an integer
into a list
?
For example, change 132
into [1,3,2]
an
>>>list(map(int, str(number))) #number is a given integer
It returns a list of all digits of number.
By looping it can be done the following way :)
num1= int(input('Enter the number'))
sum1 = num1 #making a alt int to store the value of the orginal so it wont be affected
y = [] #making a list
while True:
if(sum1==0):#checking if the number is not zero so it can break if it is
break
d = sum1%10 #last number of your integer is saved in d
sum1 = int(sum1/10) #integer is now with out the last number ie.4320/10 become 432
y.append(d) # appending the last number in the first place
y.reverse()#as last is in first , reversing the number to orginal form
print(y)
Answer becomes
Enter the number2342
[2, 3, 4, 2]
The shortest and best way is already answered, but the first thing I thought of was the mathematical way, so here it is:
def intlist(n):
q = n
ret = []
while q != 0:
q, r = divmod(q, 10) # Divide by 10, see the remainder
ret.insert(0, r) # The remainder is the first to the right digit
return ret
print intlist(3)
print '-'
print intlist(10)
print '--'
print intlist(137)
It's just another interesting approach, you definitely don't have to use such a thing in practical use cases.
First convert the value in a string to iterate it, Them each value can be convert to a Integer value = 12345
l = [ int(item) for item in str(value) ]