Competitive Programming Python: Repeated sum of digits Error

Question

Don\'t know It\'s right place to ask this or not. But I was feeling completely stuck. Couldn\'t find better way to solve it.

I am newbie in competitive Programming.

Answer 1

You have not implemented the code properly. You are iterating over i from 0 to t. Why?? The methodology goes as follows:

N = 12345

Calculate the sum of digits(1+2+3+4+5 = 15).

Check if it is less than 10. If so, then the current sum is the answer.. If not.. follow the same procedure by setting N = 15

Here is the code:

def sum(inp):
    while inp > 9:
        num = inp
        s = 0
        while num > 0:
            s = s + num%10
            num = num/10
        inp = s

    return inp

t = int(raw_input())
for i in range(t):
    n = int(raw_input())
    print sum(n)

Edit: I think you are iterating till t because you have considered t to be the number of testcases. So, inside the for loop, you should take another input for N for each of the testcase. [This is based on the input and output that you have provided in the question]

Edit-2: I have changed the code a bit. The question asks us to find the repeated sum of t numbers. For that, I have added a loop where we input a number n corresponding to each testcase and find its repeated sum.