object BaseConvert {
fun toBase(n: Int, base: Int): String {
require(base in 2..36) { "Base must be between 2 and 36" }
if (n == 0) return "0"
val digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var value = n
val result = StringBuilder()
while (value > 0) {
val remainder = value % base
result.append(digits[remainder])
value /= base
}
return result.reverse().toString()
}
@JvmStatic
fun main(args: Array<String>) {
val number = 25
val bases = listOf(2, 8, 16, 36)
for (b in bases) {
println("$number in base $b = ${toBase(number, b)}")
}
}
}
/*
The decimal number 25 is represented as P in base-36.
Base-36 uses digits 0-9 followed by letters A-Z (where A=10, B=11, ..., P=25, ..., Z=35)
to represent values.
*/
/*
run:
25 in base 2 = 11001
25 in base 8 = 31
25 in base 16 = 19
25 in base 36 = P
*/
