"Lost card: There was a set of cards with numbers from 1 to N. One of the card is now lost. Determine the number on that lost card given the numbers for the remaining cards. " - Snakify python coding question

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CODING QUESTION

There was a set of cards with numbers from 1 to N. One of the card is now lost. Determine the number on that lost card given the numbers for the remaining cards.

Given a number N, followed by N − 1 integers - representing the numbers on the remaining cards (distinct integers in the range from 1 to N). Find and print the number on the lost card.


SOLUTION

from math import*
n=int(input())
f=factorial(n)
for i in range(n-1):
    f/=int(input())
print(int(f))

 

Input :

5
1
2
3
4

Output : 

5