please could some one understand what i am saying i need a program that can count number of digit in a number given by the user .for example if we see123 it has 3 digits...?
I don't know Phyton but here is the algorithm
counter = 0
while : number >= 1
number = number / 10
counter = counter + 1
Convert to string and use len(),is the most commen way.
>>> n = 123 >>> len(str(n)) 3 >>>
If your user input is returning a string like
raw_input() in python 2.x and
input() in python 3.x you can use len().
Then convert to integer if needed.
You can make function that takes integer as argument,and returning the lenght out.
A couple of example.
>>> u = raw_input('Enter a number') Enter a number >>> u = raw_input('Enter a number: ') Enter a number: 123 >>> len(u) 3 >>> int(u) + 123 246 #A function >>> def lenght(n): return len(str(n)) >>> lenght(12345) 5 >>>
Without converting to string.
import math digits = int(math.log10(12345))+1 print digits #5
You also should consider the possibility that the integer number might be negative.
Please leave that to the person that should do his/her own homework.