Answer to Question #187021 in Python for hemanth

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

def firstMissing(l):
    n = 1
    s = set(l)
    while n in s:
        n += 1
    return n


l = input().split()
for i in range(len(l)):
    l[i] = int(l[i])
print(firstMissing(l))