Replace all 0’s with 1 in a given integer
Detailed guide and Python implementation for the 'Replace all 0’s with 1 in a given integer' problem.
Problem Statement
Write a function replace_zeros(n) that takes a positive integer n and returns a new integer where every digit '0' in n has been replaced with '1'.
For example, if n = 102030, the result should be 112131 (each 0 becomes 1).
- •1 <= n <= 10^9
Examples
replace_zeros(102030)
112131
The digits of 102030 are 1,0,2,0,3,0. Replacing each 0 with 1 gives 1,1,2,1,3,1 = 112131.
replace_zeros(1000)
1111
1,0,0,0 becomes 1,1,1,1 = 1111.
replace_zeros(123)
123
No zeros in 123, so it remains unchanged.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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