LeetCode in Kotlin
709. To Lower Case
Easy
Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.
Example 1:
Input: s = “Hello”
Output: “hello”
Example 2:
Input: s = “here”
Output: “here”
Example 3:
Input: s = “LOVELY”
Output: “lovely”
Constraints:
1 <= s.length <= 100sconsists of printable ASCII characters.
Solution
class Solution {
fun toLowerCase(s: String): String {
val c = s.toCharArray()
for (i in s.indices) {
if (c[i] in 'A'..'Z') {
c[i] = (c[i].code - 'A'.code + 'a'.code).toChar()
}
}
return String(c)
}
}