Answer to Question #186146 in Python for manikanta

Question

Smallest Missing Number

Given a list of numbers, write a program to print the smallest positive integer missing in the given numbers.

Input

The input will be a single line containing numbers separated by space.

Output

The output should be a single line containing the smallest missing number from given numbers.

Explanation

For example, if the input numbers are 3, 1, 2, 5, 3, 7, 7.

The number 1, 2, 3 are present. But the number 4 is not. So 4 is the smallest positive integers that is missing from the given numbers.

Sample Input 1

3 1 2 5 3 7 7

Sample Output 1

4

Sample Input 2

5 5 2 3 1 8 8 4

Sample Output 2

6

Answer 1

import sys

if len(sys.argv) > 1:
   nums = sys.argv[1:]
else:
   nums = input().split(" ")

nums.sort()
if int(nums[0]) > 1:
   print("1")
else:
   for k in range(0, len(nums)-1):
       if int(nums[k+1]) > int(nums[k])+1:
           print(int(nums[k])+1)
           sys.exit()
   print(int(nums[-1])+1)