LeetCode in Kotlin
3726. Remove Zeros in Decimal Representation
Easy
You are given a positive integer n.
Return the integer obtained by removing all zeros from the decimal representation of n.
Example 1:
Input: n = 1020030
Output: 123
Explanation:
After removing all zeros from 1020030, we get 123.
Example 2:
Input: n = 1
Output: 1
Explanation:
1 has no zero in its decimal representation. Therefore, the answer is 1.
Constraints:
1 <= n <= 1015
Solution
class Solution {
fun removeZeros(n: Long): Long {
val x = StringBuilder()
val s = n.toString()
for (i in 0..<s.length) {
if (s[i] != '0') {
x.append(s[i])
}
}
return x.toString().toLong()
}
}