Answer to Question #182869 in Python for Garimalla Bharath Kumar

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

user_str = input('Enter a single line containing numbers separated by space:')
user_list = [int(i) for i in user_str.split()]
user_set = set(user_list)
ordinal_set = set([i for i in range (1,(len(user_set)+2))])
min_number = min(ordinal_set - user_set)
print ('The smallest missing number from given numbers',min_number)