Remove K Digits Geeks for Geeks python solution problem of the day
Given a non-negative integer S represented as a string, remove K digits from the number so that the new number is the smallest possible.
Note : The given num does not contain any leading zero.
Example 1:
Input:
S = "149811", K = 3
Output:
111
Explanation:
Remove the three digits
4, 9, and 8 to form the new number 111
which is smallest.
Example 2:
Input:
S = "1002991", K = 3
Output:
21
Explanation:
Remove the three digits 1(leading
one), 9, and 9 to form the new number 21(Note
that the output must not contain leading
zeroes) which is the smallest